Unparalleled douche. If there is a limit to how douchey you can be, a dounderhead's existence is dedicated to exceeding that limit.
Did you see that dounderhead Andrew walk by? The only other word I would use to describe him is 'douche.' Dounderhead also means 'douche,' but it's like, a whole lot worse.
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.