Grand Slam

when you and someone hit all the bases in one night, grand slam.

bella: yo how many bases did you hit last night?
connor: grand slam baby

“wow i hit the grand slam last night!”

by gymgirl150 February 6, 2022

Grand Slam

when the turd you're shitting starts touching the water in the toilet bowl, while still attached to your arsehole.

Evrytime i eat Tex-Mex, i get a Grand Slam

by Nicoprofound April 8, 2006

Grand Slam

When you have a one night stand, but get a piece of ass regardless. Whores do this. And they don't even have to date!

Yo mom had a grand slam date with me last night! Have fun with your new baby brother!

by DeAssFucker December 4, 2003

Grand Slam

A game usually played at high school dances, who's objection is to make out with at least one person from every grade, including your own. Another variation of the game is that, in order to win, you count each person you make out with by points. Someone in your own grade, for example, could rank as lower points than someone in the senior grades. The person with the most points win.

Virginia: We should totally play Grand Slam at semi tonight.
Jared: I definitely won Grand Slam; I'm only a niner and I made out with over 12 grade twelve bitties.

by Virginialikeswomen March 7, 2011

Grand Slam

When four guys blow their gooey loads on a person's face; male or female.

Calvin gave up a Grand Slam to Jeter, Rodriguez, Posada, and Giambi.

by Pvt. Twitchy May 12, 2007

Grand Slam

When a girl is sucking a guys cock, the guys hits her over the head with a baseball bat and knocks her out.

Bro, I fucking grand slammed ur mom last night

by Freye December 17, 2008

Grand Slam

When you fuck a four-person family, usually both parents and both children, though this can be interchanged (Three children, one parent, etc.) to your liking. MUST be an immediate family, cannot be a cousin, grandparent, uncle, etc.

"Bro I hit a Grand Slam on that Johnson family"

by BathtubBarracuda August 31, 2016