1. To squeeze your butt-cheeks together so hard that you are forced onto your toes and your khakis become floods.
2. A popular dance move where one abruptly clenches his/her cheeks, shoots up on their toes, and lets out an MJ scream
Babe #1- "Wow things got pretty aggresive back there. Did you see Joey doing the Khaki-Clench?"
Babe #2- "Sure did. The old Khaki-Clench"
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