Trosh

The back of your upper thigh, or area right below you buttocks.

"Hey I saw that crazy guy trying to spank you in the butt with that stick, did he get you?"
"No, he missed and went a little low and got my trosh."
"Ouch, he spanked your trosh?"
"Yeah, it hurts like hell."

by themagicturtle October 11, 2009