Sem

Abbreviation of "awesem," a slang version of "awesome." used commonly on student film sets in the Chicago area to refer to something extremely cool or pleasing.

- "hey, the car mount is ready."
- "SEM."

by SylviaToo January 23, 2010

sem

A man who is very kind. He had the most beautiful eyes in the world and everyone likes him. He's also very funny and with that character, every girl falls for him.

Sem is the kind of man who every girl wants to marry.

by #######dishssssssss February 10, 2018

SEM

Sexually Enhanced Males

"Did you see that guy over there?"
"OMG yesssss, must have been a SEM"

by urbandictionaryperson123456789 October 23, 2011

Sem

used instead of "same".

"I eat pizza last night."
- "sem, me too."

by weeb-attorney January 19, 2021

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.

by Jana-Blonde June 29, 2009

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.

by kjdfhgfhdf March 7, 2007

Sem

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!!

by Don’t waste time nigga November 17, 2017