Bomb Plays Uno

Listen up, buttercup! This joke is so dumb it's genius. See, a "bomb" is a thing that goes BOOM! And "Uno" is a card game where you gotta shout "Uno!" when you're down to one card. So, the bomb is playing Uno and announces it has one card left before it explodes. It's funny 'cause it's unexpected and kinda dark. You probably still don't get it, do you?