What is Sinbox?
1.
Sinbox (noun):
A vagina - particularly one belonging to a female co-worker, or a girl you meet on the internet.
Leroy: "What's up, dude? How'd your date with that chicky from work go???"
Ian: "Oh maaan! I totally delivered in her sinbox!"
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A terrible disorder with horrible symptoms such as an inexplicable dress sense, naturally slick, greasy hair, ever thickening eyebrows, ..
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Following several hours of coitus, the female partner finds herself satisfied but exhausted - unable to move a muscle. At this point th..
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someone who likes to give it up the bum
man, matt is a real anal driller
See marmite miner, porksword, ass..