Phoenix
The penis seems to have soooooooooooooo many other names. Friends and I complied this list but I am sure I have missed some, so please add:
Penis
Cock
Johnson
Willie
Package
Johnson
Willie Wacker
One Eyed Snake
Pee Pee
Peter
Weiner
Magic wand
Tallywacker
Trouser snake
Winky
(what I personally refer to it as) Junior
And even perhaps add what you personally call yours???!!!
This should be fun 
as in "Let's play hid the baby leg!"
Main vein
as in "Man! I gotta go drain the main vein!"
Mutton dagger
as in "Buddy, you oughta just do her in with your mutton dagger."
Kojak
as in "The date was lame. I just dropped her off and wnet home to strangle Kojak."
Banana
as in "Hey sweet thing, how 'bout you let me the monkey a banana."
HalfHour