To hit on a girl using a bad chat up line or corny lines stolen from a film.
James - Yo, check out Gaz.
Ian - What's he's doing now?
James - He's totally getting his cheese on with that girl.

or

Gaz - You look so beautiful. If I could rearrange the alphabet, I'd put U and I closer to togther...
James - Get your cheese on!
by VoodooBoy February 21, 2006
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To get any form of sex - oral or intercourse. Mainly for men: getting your dick wet - sucked or fucked.
Yo dude, what happened with the babe you took home last night? You get your cheese wet?
by ZER21 May 14, 2021
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