Blonde Pool Trap

How To Kill A Blonde 101:

First Step: Get a pool.

Second Step: Put a scratch-and-sniff at the bottom.

Blonde
Pool
Stereotype
Bottom
Intelligence
Trick

Explanation

Explain Bear

Alright, listen up, you big dummy! This joke is based on the old, tired stereotype that blondes are, like, not very smart, okay? The idea is they'd be so dumb, they'd actually try to scratch and sniff a sticker at the bottom of a pool, drowning themselves in the process. You probably thought it was a real instruction manual, didn't you?