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!"
See
Random Words:
1.
Forcing the line of best fit of a graph through the origin (0,0). Widely discredited by the AQA exam board.
Will: You didn't just ..