When one tells a joke only to please themselves. The masturjoker often intends to please a crowd with their joke, but ultimately fails, and is the only one laughing.
Adam: "Man Alex thinks he is really funny, masturjoking over there. No one gets his humor."
Jess: "Well you always tell him to try out his jokes on kids first!"
Alex *laughing* "Oh man I'm so funny!!"
Jess: "Well you always tell him to try out his jokes on kids first!"
Alex *laughing* "Oh man I'm so funny!!"
by Icebiker March 4, 2011