ghetto clarinet
A sex act in which a man inserts a kazoo into his rectum while his partner takes the tip of the man's penis into his or her mouth and mimes playing a clarinet. The man should do his best to fart out a tune while making sure not to shit into the kazoo.
Did you see Tara at last night's party? She played 'Oh When the Saints Go Marching In' on Billy's ghetto clarinet.