Something so bad, so awful, it's downright painful but you can't help but laugh at it in misery.
I was on the train and this girl was singing Smash Mouth's All Star on her iPod, and singing it badly... it was so painfularious but I couldn't stop laughing.
When Rondo of the Boston Celtics got close-lined by the Miami Heat's Igaulskas dick in the Celtics-Heat game on February 13th, 2011 it was Painlarious.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.
After school, The Modells on Jamaica Ave was active. Respectfully.