Costanzaed It 

Costanzaed It--the art of taking a seemingly sure thing and somehow fumbling it away, usually due to a temporary and false sense of empowerment or boldness.

Based on the Seinfeld character George who repeatedly snapped defeat from the jaws of victory.

Also: present tense "Costanza It", or to "Pull a Costanza"

1. Man, I sure Costanzaed It with that chick. We were sucking face and I asked her if she and her sister would go for a ride on the threeway freeway. She ditched me faster than a cat can lick its ass.

2. Dude, you have a Recession Beard. Don't Pull a Costanza on the job offer by asking for Rock Star Parking and mo money.

Costanzaed It by ditchdigger May 1, 2009