When four or more of your friends hook up with the same girl at different times. Can only be completed if each person goes all the way (i.e. hitting a home run).
by YaMumz September 10, 2014
by fullsend101 September 28, 2018
I hit my first ever Grand Slam the other day, you wouldn't believe it! A one-versus-five at 14-15, what a game!
by walterP_tv February 15, 2018
Term is used to describe the event of when you wake up with major morning wood the size of a Denny's plate full of breakfast awesomeness.
Eric: I woke up on my girlfriend's mom's couch to her whole family staring at my grand slam! Needless to say, they were quite impressed.
by RiddyTX June 14, 2015
When you fuck six girls at once by sticking your dick in one girls, your tongue in another, and your hands and feet in the pussy of the four remaining girls. Note: there will be a lot of moaning and it will look like you have girls growing off of your limbs.
by globglogabgalab21 June 10, 2019
when in a single night a person shits themselves, pisses themselves and throws up all over themselves due to drinking to much alcohol.
by handcrafted October 15, 2018
n. A ban from entering all four major tennis tournaments in the same year.
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Looks like he is one down and three to go in his pursuit of a grand slam.
Wimbledon will be tough. He’s always had trouble with the English courts.
Wimbledon will be tough. He’s always had trouble with the English courts.
by gnostic3 January 18, 2022