What Do You Call a Fish With Two Knees?
An anatomically impossible fish turns out to be hiding an everyday lunchbox staple inside its own name.
The Joke
What do you call a fish with two knees?
A two-knee fish.
Witty's Word
An anatomy riddle that solves itself the instant you say it slightly too fast.
Explain the Joke
Two-knee fish,' read aloud at speed, sounds almost identical to 'tuna fish' — a common pantry staple. The punchline pretends to describe an anatomical oddity while actually just spelling out a familiar word phonetically, letting the absurd image and the everyday answer collide.
Why People Love This Joke
The joke rewards listeners who say it out loud — the moment 'two-knee fish' collapses into 'tuna fish,' the absurd image dissolves into something completely mundane, and that vanishing act is the entire trick.
Joke Breakdown
The setup invites the listener to imagine a biologically impossible fish. The punchline 'a two-knee fish' resolves it not through logic but through pronunciation — said quickly, the absurd description simply becomes the name of an ordinary tinned fish.
When to Use This Joke
Perfect for classroom riddle sessions, seafood and lunchbox humour, road trips, and any moment a riddle's answer hides in plain sound.