What is Sinbox?
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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!"
See
Random Words:
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Thats wats up.
Aw man i just got this fire green.
Dashwahsup.
See sup, hi..
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when your girlfriend or anyone sharing milk and cookies with you pushes your cookie-holding hand out of the way just as you are about to..