adj. Having a fully-extended, prominently-puffed-out mammary region.
Related terms: chesty, thrustage, chest-thrustage, boob-thrustage, hip-thrustage, pelvic-thrustage.
Real citation: "I am about ten years too old not to bristle when somebody calls me dude. I get all chest-thrusty to hint that "Hey, man, I'm a girl." In that context, man is gender neutral too."
(Maggie Balistrieri, "Sub: Dude," Nov. 8, 2004, Cafe Mo, http://cafemo.blogspot.com/2004/11/sub-dude.html)
Made-up citation: "If that asswipe gets all chest-thrusty about philosophy and fuck-all one more time, I am gonna kick him in the ding-ding."