A really fucked upfetish were a guy rips out the eye of the victim and than proceeds to use the eye socket like a vagina eye penetration is usually combined with gore and murder
The universal definition is "to get something done," but it can be stretched to mean "to close the deal," "to sell," etc. The opposite of procrastinating.
Person 1: I'm almost done with this report! I'm so close to cinching the peet!
Person 2: Yeah, dude, cinch the peet!