New Sarcasm Punctuation Mark Makes Punctuation Cool Again 31.88K Hamilton Nolan 01/12/10 09:36AM Filed to: Grammar Grammar Sarcasm Punctuation Literature Sarcmark Necessary THings Important grammar news via press release! There is now a punctuation mark to indicate sarcasm. You can purchase SarcMark© software, to boldly indicate when you're being less than serious. Luckily, our readers always pick up on sarcasm right away.