The act of helping someone escape punishment or other consequences that would result from an offense that they obviously committed.
-Ladies and gentlemen of this supposed jury, I have one final thing I want you to consider. Ladies and gentlemen, this is Chewbacca. Chewbacca is a Wookiee from the planet Kashyyyk. But Chewbacca lives on the planet Endor. Now think about it; that does not make sense!
Prosecutor 1: Oh shit... not the Chewbacca Defense
Prosecutor 2: Ugh.... looks like Johnnie's Coch Blocking us again...