Reverse Card jokes

Boy: Your dick is so small, oh wait, you don't have one.

Older boy: UNO reverse card!

If there's ever a shooting at school, pull out an Uno reverse card.

What if some kid was like, "I'm going to shoot up the school!", and then someone just pulls up with a reverse card?

Free blacks in the Civil War is the same as me drawing a reverse card in Uno.

Opponent fist attacks your face, no you can not activate a trap card.

A capital E backwards is just it's mirror image.