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1.
a long erect cock ready to bust a nut on an unsuspecting female at any given time
Ahhh! Suck my nut cannon you whore! Ahhh! I busted a nut in your fucking face! Suck it bitch!
by Jurgen von Longcock June 02, 2012
 
2.
The male reproductive organ (ie: the penis)
Larry went over to Joes house to return a barrow video game when Larry saw Joes fathers nut cannon.
by Locher.0 June 01, 2012