Nothing "happens" when you dream about crabs. If you mean "crabs" as shellfish, the dream could mean that someone is preparing seafood somewhere nearby while you are sleeping, and the odor is influencing your dream.
then thats one hot crab.
They get visited by a stork.
It pinches you.
It grows back
You can get a stomache ache.
Call your friends. Have them bring butter.
Minor injuries and cuts, but nothing major
If you eat raw crab meat you will most likely get sick
when a mommy hermit crab and a daddy hermit crab love each other very much, they... (you know what happens next.)
A soft shell crab, often referred to as a softie, is a recently molted crab. Usually it's a Blue crab that is served as a soft shell dish. The crab will shed it's old shell when it has grown out of it. The new shell will be soft but only for a couple of days.
It's probably dead
Its been eaten