Also known as "ass cleavage" or the more widely used "plumber butt".
Psst. Got something funnier? Add your own funny phrase.
Name of a slot machine and I'm guessing a race horse as well.
This was a perfectly good phrase to describe the naked, hairy male body before it was co-opted for a Dial commercial.
A headline in today's New York Post read, "Stick-Thin's Unhealthy, but Granny Flab is unsightly." See also Weight.