What is Grandslam?
1.
A term more commonly used in the UK, it is simultaneous defecation and vomiting, usually upon oneself. Normally occurs post heavy-drinking.
Did you see that bloke who just Grandslammed in the bathroom?
See
2.
group sex
I hit a "GRANDSLAM" last night!!!!
Random Words:
1.
•An inexpensive cigar that can be bought wherever cigarettes and other tobacco products are sold
•Product where the term bluntoriginate..