a negotiation where the person who wants something has no chance of getting anything from the person who might give them something (or in this case nothing)
1:I was talking to Andre and I wanted his Bob Marley CD and then he wouldn't give it to me after I offered him my entire CD collection.
2:What a nogotiation
Refusal to accept negotiation terms, and therefore reaching an agreement is a "no go".
Amanda: "Can I borrow your cute heels to go clubbing tonight?"
Kelly: "No way! Your foot funk is contagious... I can't be having your gnarly corn-infested toes all up in my shoes."
Amanda: "Well, I guess this NoGotiation