joke is on

joke is on someone

1. Someone is the butt of the joke. The joke is on Bob, so it's good that he is a good sport.

2. The joke has backfired on someone. Ha, ha! The joke's on you after all.

Name	Pronounced	Usage
JÚLia	ZHOO-lyə (Portuguese), YOO-lee-aw (Hungarian)	Portuguese, Catalan, Hungarian, Slovak
DonndubhÁN	-	Ancient Irish
Apollinaire	-	French (Rare)
Ezekiel	[i'zi:kjəl]
MÄRta	-	Swedish
Asch	[æʃ]