MINI SQUISHABLE HAPPY BAT

You're totally bats! He's batty! They've got bats in the belfry! That idea is bat, um, poop! These winged mammals sure do know how to carry off a good insult. Why go through all the linguistic gyrations to explain that someone isn't the sharpest tool in the shed (What shed? What tool? I mean, hammers aren't even supposed to be sharp!)...when you could just compare them to a friendly chiroptera! So the next time you really want to let someone know you think they're unglued, don't reach for some kind of "nuts-based" metaphor or "loose screws" verbal device. Reach for this bat instead!