2) Also can be used those places on the body that no one really has a name for, such as the inside of the elbow, or the back of the knee.
2) "Eww that girl was all sweaty in her elbow nootch. How does that even happen??"
Verb: Generic verb used to describe the activities of someone whilst their actual current activity is not yet precisely known. However, in this instance, it is normally used to suggest they are involved in sexual activities with someone, or indeed, something.
Why are you being such a nootch in this argument?
Q: Where is Dave just now?
A: Oh, I think he's nootching that girl he met last night in the club we were at.