The universal definition is "to get somethingdone," 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!
a choch is synonymous to a douche bag and is defined as a male with spiked hair (usually blonde or bleached blonde), a fake tan and fake jewelry. In other words, a choch is totally fake.
A: That choch told me his name was Antonio Giovanni.
B: No man, that's not his real name! He just made that up that choch bag name to impress the ladies!
C: With a name like Antonio Giovanni you know he's a choch and full of $h*t!