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!

man banjo by Wetpants January 13, 2011

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

strumming my man banjo by jonbalbach June 29, 2009

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.

Poor man's banjo by EDY28 June 28, 2021