As with the other baseball references to the bases (first base, second base, and so on) the grand slam refers to having anal sex. Since it is one up from a home run (just vaginal sex), and doesn't usually happen quite as often.
by Chris11 November 22, 2007
involved with sexual intercourse. you start off knowing that you are going to round all of the bases. As you round all of the bases, you waive to the crowd like a pro. you take your time to round all of the bases to get the full enjoyment out of the moment. Then when u get past the home base, you high five your team who are all lined up from the plate to the dug out - and the party doesnt stop there.
by ummmm.. what tha May 30, 2005
Wendy's term: Used when fry person needs a serving of fries, nuggets AND strips. Originally used by Luke and was forced into Wendy's terminology by Perry.
by DesPERRYado February 13, 2005
Alfred Giggles:I have a quarter o , do you guys want to do a grand slam
Arnie Berkwitz: as long as it is free
Arnie Berkwitz: as long as it is free
by dj dubsack jones December 25, 2008
by Forgott|e|n July 31, 2008
by Mr.Crayonbox February 24, 2021
by rrK_NAFK January 05, 2020