Sem

The greatest person in the history of the universe, everyone who meets him wants to be him or be with him.

Man I wish I was Sem!

by Erin Maxwell October 14, 2011

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

used instead of "same".

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

by weeb-attorney January 19, 2021

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 9, 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 April 20, 2018

Semming

Verb; to show a lack of effort

We all met at the movies except Todd. He did not call, didn’t text, he was semming.

by SaveSam91 July 23, 2019