Couchie is adapted from the French word coucher for "to go to bed" (like our word "couch", which you can
lie down on). And around the turn of the century in really gritty clubs and circuses (and for a long
time after that) women who danced suggestively rolling their hips were "hootchie coutchie" dancers, or dancing the "hootchie
coochie".
These women were not considered morally upright in the general public, so calling a woman a hootchie cooch was calling her a tramp, especially if dressed in a way that is meant to be provocative and showy. Hootchie
mama is a variation on this
term. (And could get you beat down if you call a woman that.)
That Britney Spears ain't never gonna get her
kids back going into the courtroom dressed like a hoochie mama.
That daughter of yours thinks she looks
cute in her short skirt and bare midriff, but to the guys at school she just looks real hootchie.
"Now folks here's the story 'bout Minnie the Moocher. She was a red
hot hootchie coocher..." - Minnie the Moocher (Cab Calloway - 1930)