An armpit 

A feminist or hippie female with excessive body hair.

An armpit tried to tell me about women's rights last night.

You mean that hairy chick at the bar?

An armpit by Kingaids June 12, 2016

mouth tastes like an abo's armpit 

To have a foul tasting mouth such as the dry foul taste in the mouth the morning after a hard drinking session. Reference is generally to the Australian aboriginal as they have very poor personal hygiene.

My mouth tastes like an abo's armpit

mouth tastes like an abo's armpit by Djep September 26, 2007