Glossary entry (derived from question below)
English term or phrase:
irony punctuation
Portuguese translation:
pontuação de ironia; pontuação para indicar ironia
English term
Brazil
irony punctuation
https://en.wikipedia.org/wiki/Irony_punctuation
| 4 +1 | pontuação de ironia; pontuação para indicar ironia |
Matheus Chaud
|
| 4 +1 | pontuação que denota ironia |
Diana Coada (X)
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| 4 +1 | tom de ironia |
Mario Freitas
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| 4 +1 | sinal de ironia |
Maria Teresa Borges de Almeida
|
Oct 15, 2016 10:52: Matheus Chaud changed "Field" from "Other" to "Social Sciences"
Non-PRO (1): Diana Coada (X)
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Proposed translations
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
pontuação de ironia; pontuação para indicar ironia
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Note added at 13 horas (2015-12-17 10:34:08 GMT)
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Acredito que seja pontuação mesmo: assim como existe o ponto de exclamação e o ponto de interrogação, já tentaram inventar várias vezes um "ponto de ironia", ou uma pontuação que indicasse ironia:
Cliquem no link e vejam a figura no site - é bem esclarecedora.
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http://the-toast.net/2015/06/22/a-linguist-explains-how-we-w...
"There’s a venerable history of proposals for irony punctuation. The backwards question mark is probably the most popular: it was first proposed in the 1500s as the percontation point, and was subsequently re-proposed by several people in the 1800s as the slightly catchier irony mark. The 1800s also saw a proposed “oversize arrow head with small stem”, the 1600s saw a proposal for an upside-down exclamation mark ¡, and the 1900s saw the Greek letter psi with a dot underneath (approximately Ψ̣ if my fonts would line up better). And it hasn’t stopped: in the 2000s, we’ve already gotten proposals for both a lightning-bolt exclamation mark and a (proprietary) round-swirly symbol with a dot in the middle, the Sarc Mark. (You can read all about them in detail on the glorious Irony Punctuation Wikipedia article.)"
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A pontuação de ironia seria o recurso a ser usado na escrita para capturar o tom de ironia (assim como captamos o sentimento de admiração ou surpresa com o ponto de exclamação, por exemplo).
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Note added at 13 horas (2015-12-17 10:36:22 GMT)
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http://www.portuguesxconcursos.com.br/p/sinais-de-pontuacao-...
"Pode-se utilizar desta pontuação para indicar diversos sentimentos (surpresa, indignação...)
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http://educacao.uol.com.br/disciplinas/portugues/sinais-de-p...
"Para indicar ironia, malícia ou qualquer outro sentimento..."
| agree |
Stephania Matousek (X)
: Tendo em vista o link indicado pelo Alexandre, parece se tratar de pontuação mesmo...
11 hrs
|
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Obrigado, Stephania!
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pontuação que denota ironia
a) o fim de uma frase declarativa, simples ou complexa (Ex.: Vivo em Lisboa.);
b) abreviaturas (Ex.:Sr. Dr.);
...
O ponto de exclamação é um sinal colocado:
c) em final de frase que indique ordem (imperativo) - (Ex.: - Cale-se!);
chamamento (vocativo) - (Ex.: António! - gritou o irmão.); e ironia (Ex.: Bonito
serviço!);
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) , Portuguese (Variant: Brazilian) 
Works in: English to Portuguese, Portuguese to English
tom de ironia
Portugal
Maria Teresa Borges de Almeida 
30+ years translating EU documents
Native in: Portuguese (Variant: European/Portugal)
Works in: English to Portuguese, French to Portuguese, Spanish to Portuguese, and 1 more.
Discussion
Vejo que você interpretou o trecho como uma referência ao léxico e eu como uma referência à semântica.
Portanto, sua observação está perfeita e a diferença entre nossas sugestões e pontos de vista está explicada. Agora, cabe ao Alexandre julgar o que cabe aqui, conforme o contexto.
Aqui, acho necessário deixar claro que se trata de pontuação mesmo, porque é o recurso que vai ser usado na escrita para capturar o tom de ironia (assim como captamos o sentimento de admiração ou surpresa com o ponto de exclamação, por exemplo).
Acredito que não haja ocorrências no Google porque pouca gente se interessa por falar sobre algo que nunca foi para frente - uma pontuação que servisse para expressar ironia.
Veja como são poucas as referências a um dos que propuseram criar o "ponto de ironia":
https://www.google.com.br/search?sourceid=chrome-psyapi2&ion...
http://the-toast.net/2015/06/22/a-linguist-explains-how-we-w...
"There’s a venerable history of proposals for irony punctuation. The backwards question mark is probably the most popular: it was first proposed in the 1500s as the percontation point, and was subsequently re-proposed by several people in the 1800s as the slightly catchier irony mark. The 1800s also saw a proposed “oversize arrow head with small stem”, the 1600s saw a proposal for an upside-down exclamation mark ¡, and the 1900s saw the Greek letter psi with a dot underneath (approximately Ψ̣ if my fonts would line up better). And it hasn’t stopped: in the 2000s, we’ve already gotten proposals for both a lightning-bolt exclamation mark and a (proprietary) round-swirly symbol with a dot in the middle, the Sarc Mark. (You can read all about them in detail on the glorious Irony Punctuation Wikipedia article.)"
Cliquem no link e vejam a figura no site - é bem esclarecedora.