A sac or as u see a sack is a person that is acting like a dick, but since we hide everything from our parents jus like me u are not allowed to say that so in the same sense u say sac
That nigga quavo being like a sack.🖕🏾
by Kinggk*dnt*get*it*fucked*up January 27, 2018
To have sexual intercourse with somebody in there bed. Used as slag in dublin.
Ah jaysus love i want you in the sack!
by Orlababbyy July 7, 2008
To be fired from ones place of employment.

Also, to get "the sack".
"Sorry guys, can't go out tonight. I've got to save money since I was sacked today"

"Hey, did you hear Tracey got the sack?"
by seetheris August 11, 2005
A more polite way of saying "fuck that" so you don't get in trouble with parents, teachers or bosses
Teacher: "Stay behind at lunch for a homework catch-up"
Student "I have people to meet, sack that"
by MacSki December 23, 2013
Bed...generally has sexual connotations.
Maria was a terrible cook and talked to fucking much, but because she had a huge rack and was a demon in the sack, Phil decided to put the cap on the kitchen cleaner and keep the ol' bag around for a little while longer.
by Nick D November 24, 2003
"Yo, you can go lick my sack."
by x January 22, 2003
to get punched, kicked, or hit in the nuts
I got sacked earlier in a fight
by allan_t321 April 21, 2016