Thumb

The other day Conor was playing in the living room while I was in the kitchen.  I heard a loud bang from the other room.
Conor walked into the kitchen holding his crotch.

Conor: "Mama I hurt my thumb!"
Me: "Uh oh... let me see." (to which he would normally hold out the damaged body part for me to inspect)

Conor still grabbing his pants.

Me: "Um.... the thumb in your pants?"
Conor: "Yeah."

I guess maybe we need to work a little more on body part names!