A foursome. Where as 'hitting a home run' means scoring with one chick, a grand slam means four runs so four chicks.
"I hit a grand slam home run last night."
30π 34π
A βGrand Slamβ is the act of deficating on the front most edge of a toilet bowl and bringing the lid down to splatter the feces all over the place
Yo bro the janitor got so angry he had to clean up my (Grand Slam)
6π 4π
When you go from first base, to second, to third, and to fourth base multiple times throughout the night.
"Dude last night I got a Grand Slam from Ashlee"
"Nice Bro! I would kill to even go to first with her!"
6π 4π
When a woman orgasms so intensly she squirts, pees, shits and even starts her period.
That wasn't an orgasm, that was a grand slam.
6π 4π
To awake one fine morn, and verily discover one's matress resembling a ordinance survey map with a rather warm chocolate log spread all over it as well as spew on your face and pillow.
"I do not think she will want to see me again after I came home totally ringbolted and grand slammed the bed, although your mum is a bit of a dirty slapper."
20π 27π
When you pull your penis as far back between your butt cheeks(chicken in the rough), and put it against a window to surprise someone
When i opened the blinds my brother surprised me with the grand slam!ππ
Rock band former by Phillip Lynott when Thin Lizzy split up. Toured Europe continuously but never recorded anything due to Lynotts untimely death.
Grand Slam bootlegs are very sought after by collectors.
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