look up any word, like dirty sanchez:
 
1.
When one person masturbates a penis using an armpit.
Benny: Hey Catherine, let's have sex.
Catherine: I'm a virgin, and I don't want to. How about you fuck my armpit?
Benny: Ew, I don't want to do the duck salad with you.
by Armpit lover February 07, 2011