What did the hermit crabs do on Mother's Day?
They shellabrated their mommy.
What did the hermit crabs do on Mother's Day?
They shellabrated their mommy.
Okay, listen up, buttercup. The joke is all about "shellabrated." Get it? "Shell" sounds like "celebrated" and hermit crabs have shells. You probably think crabs live in tiny houses. No, their shell is their house, you numbskull!