A slam sack is a body used for fucking. This usually refers to females, but has come to encompass anyone who fits the description.
David: I am heading out to the bar to hopefully find a chick for tonight.
Kate: Are you looking for a girlfriend?
David: Nah, just looking for a slam sack.
Kate: Are you looking for a girlfriend?
David: Nah, just looking for a slam sack.
by cuppkatee December 6, 2015

by Homotech July 7, 2017

by Vette is a cunt March 21, 2019

That girl/boy has had his fair share of fornication with his/her sisters/brothers and mother/father. They do a weekly Alabama Slam-O-Rama at the trailer park!
by flyboy_24 May 8, 2021

by Crims0n Chin April 23, 2017

To lift up your top lip to your nose, revealing your front teeth, and letting it flop down, slamming against your two front teeth, making a "ploop" noise.
Kids will laugh their asses off if you slam the door on your teeth. They're very big and beautiful, so it'll be very loud.
by Weirdosis June 12, 2018
