A fork of Rural Dictionary
The greatest person in the history of the universe, everyone who meets him wants to be him or be with him.
"Did you see that guy over there?" "OMG yesssss, must have been a SEM"
SEM: Self-centered Egoistic Maniac A person who has the highest opinion for himself/herself that is very annoying. Someone who is obsessed with himself.
Person #1: Look at her. She is obsessed with herself. Person #2: She is such a SEM.
Sem: Semen Eating Monster A ugly, fat, skanky, female. Most likely has some sort STD, like crabs or scabies. Likes to fuck anything with a penis. An outcast.
a) That bitch is such a SeM, its discusting. b) Fuck that SeM and her skanky ass.
Fucking a girl from both side and giving her a cream pie on all hole sides(mouth,pussy,and asshole)
Dude I sem this chick the hell out her last night....it was lit!!