Grandslam

What is Grandslam?

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 shit yourself, vomming

group sex

I hit a "GRANDSLAM" last night!!!!

Gaz Coombes

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Nyc

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Zvon

1. an extremely loud person who occasionally likes to take it up the butt. While having buttsex, zvon will groan in a raspy voice, usually ..

Grandslam Edit Meaning