When a girl contracts her groin for pleasure because she can't properly fud herself as the situation is too public or she is just too tired.
Often referred to as a minge twinge
Man, Dave Grohl's pretty hot. Pretty damn hot. I'll just have a cheeky groin clench over him as there's way too many people on this damn bus to get proper involved with myself.
A: Girl, you want to get out of this club?
B: Babe, I'm groin clenching at the though of it!
A: Oh Baby! Hummuna Hummuna!
That boy in that advert is pretty hot. I think he deserves some special attention but it's been a long day so he'll just get a groin clench or two.
When a girl gets an involuntary twinge in the groin region as a result of thinking of/ witnessing something arousing.
Keenan: Did you SEE Channing Tatum in uniform in Dear John?
Caitlin: YES, I groin clenched so bad!