A crabsnatcher is someone who snatches crabs off pubic hair, for sport or pleasure.
Could also be a person that has uncanny abilities of diving into water , generally with a sandy bottom, and manually yanking crabs from other peoples crab traps and/ or cutting their crab pot's line so that only they will successfully pull crabs from the water.
That chick he met is nasty; he will be a crabsnatcher before the nights over.
The crabsnatcher ruined everyones fishing...i assume it was the guy in scuba gear that came up with a bunch of crabs, despite having no crab pot.
A horrible stubble-based mustache that results when you need to shave but you forget and put on chapstick first, then when you realize that if you shave around your mouth using your new electric razor the blades willgunk up with chapstick and you'll have to spend another $50 on a new razor sooner than you would have, so you end up just shaving everywhere but around your mouth, leaving an ugly stubbly chapstache.
Chad: "Hey, I think you forgot to shave around your..."
Grag: "I know!! I forgot and put on chapstick!"
Chad: "Oh. Well, don't worry; your chapstache looks great! You look just like Ashton Kutcher!"
Grag: "Shut up!!"