Do you know what kind of penis possesses you? if not check it out here:
THE PENIS CHART
so YOU can know which slang term is proper for your own personal pene.
weenie ~ 2 or less inches hard
pecker ~ 2 - 3.5 inches hard
wang ~ 3.5 - 5 inches hard
dick ~ 5 - 6.5 inches hard
cock ~ 6.5 - 8 inches hard
schlong ~ 8 - 9.5 inches hard
tyrone ~ 9.5 or more inches hard