Pocket knife
A simple but effective means of describing a male human who is badly endowed with a small, pointy knife-like phallus, however has all sorts of extra useful functions, taking a practical, positive approach to pleasuring a female human despite his size.
"But I can assure you, I wouldn't describe mine as a pocket knife!"
Gas Station Pocket Knife
An individual that looks and acts tough, but is actually a pushover.
A bully or poser
A bully or poser
"That Gas Station Pocket Knife started a shove match with a waiter for getting his girlfriend's order wrong, but he started crying after the waiter threw a punch."
Half open pocket knife
Half a bar. Or a semi erect penis
“Man that chick was hot. I’ve got a half open pocket knife in my pants.”