What is S.i.i.h.b.?
1.
Stick it in Her(or his)Butt. Any number of other slang words for butt can be substituted for Butt, including booty, bottom, bangbox, bobs ur uncle, etc...
"Hey man i met this awesome Chick!" reply..."Oh YEA? did you S.I.I.H.B.?" or My girlfriend wont let me S.I.I.H.B.
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Random Words:
1.
a man with a large penis better then being hung like a horse
jeff nemeth is hung like a elephant..