when you aren't quite sure what to wear out on a date, or out with your friends, or to your next big event...so you work what you have and wear a really low cut top or something with lots of cleavage to distract men from what you're wearing.
"OMG, Karen...what the HELL am I going to wear to the bar on Friday?"
"Screw it. It's hot out. Wear your boobs."