The perineum on a female. The space between the anus and the vagina. Background : it's a street in Houston, Texas, we were loaded one night and well... if your tuam ever needs medical attention, just take it to Dr. Locke - yeah, we don't know either. It's a great word though.
Man, she is so pissing me off! I'd like to give that ho a swift boot to the tuam!