To negotiate with someone with the intention of screwing them over, usually by denying the deal was ever made once you have what you wanted. Combination of nig and negotiate.
I started a new job because my boss promised me a promotion if I sold 50K in a month. I sold 50K in a month and asked for the promotion. My boss said he never promised a promotion. He nigotiated with me.
by MARVMAN October 15, 2007