A Knobble
You sneak your pecker out and rub it like it's the last day on Earth. It's not for a big finish, just a little scratch or a quick rub.
"I knobble on the couch while watching the game. It’s my thing.", A guy who’s too cool for school
"He knobbled in the middle of the store like no one was watching.", A guy who’s too bold for his own good
"I knobble while my mom is on the phone. It’s a habit.", A kid who’s been doing it since middle school