The fourth letter in the english lexicon.
Also slang for "Dick", "Cock" "Genitals" or any other word for a man's genitalia.
Ex. 1:
Teacher: Ok class, what comes after C?
Class: D!
Ex. 2
Friend 1: Bro! Your D is massive!
Friend 2: Thanks bro!
The most self centered idiot person I ever fucking met
Go fuck off d- the person name
Short for dick, which is a slang for penis.
I got hit in the d with a baseball the other day.