verb - the act of inhabiting your partners basement bunker(s) with your penis indefinitely until eviction notice is enforced from your landlord.*
*This is not to be confused with soaking
John: Hey Bill! Wanna go see a motion picture?
Bill: I can't, I'm currently hermit crabbing Cindy's basement bunker
John: Still?
Bill: Yeah, she hasn't evicted me yet
Joe: "Hey, want to go crabbing?"
Jim: "What? Isn't that wen a girl sends nudes in this /\_/\ position?"
Joe: "What the fuck? Did you find that on the weird Urban Dictionary website where nine year olds turn every word into some sort of sexual thing? Crabbing is when you go fishing for crabs, dumbass."