One who defines their name on urban dictionary using nothing but praises for their self.
Person 1: Do you know what (insert name) did?
Person 2: No, what dey do?
Person 1: They defined their name on urban dictionary like they are obsessed with their self.
Person 2: Whata urbanarcissist!
A person whose existence is enough to make another person a simp.
Simp1: Bro, have you met Ashley?
Simp2: Yeah man! Iรขยยm logging in to urban dictionary to use her name and make the definition everything I worship about her! She is my simpanite!