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.