madame palm Share definition Flag (n.) slang. Alternative term for the hand with which you masturbate, usually used in a suggestive manner. "Sex? No thank-you I just had some with Madame Palm if ya know what I mean" madame palm by Trojan Man January 15, 2004 0 0 Get merch Get the madame palm mug. Buy Now — $32.95 See more merch