waiting to exhale

That period of time a woman has been “sucking in her gut” to appeal to potential suitors for a long time, and is getting desperate.

“Dude, did you see Trisha at the 10-year reunion? I remember she always looked so fine, but she got married and had 3 kids.”
“Hell yeah. She wasn’t waiting to exhale for very long! She didn’t just exhale, she damn well BLEW OUT!”