man banjo
The act of male masterbation that involves playing with one's member somewhat like a banjo (or guitar).
Look mum! That old man's playing his man banjo!
strumming my man banjo
the act of a man masturbating
ohhh dude i was so horny last night but my girls outta town so i had to spend the night strumming my man banjo
Poor man's banjo
A guitar with a blown up balloon in the sound hole to make it sound like a banjo.
I don't have enough money to buy a banjo so I'll make a Poor man's banjo.