ya-ya'ing the sisterhood Share definition Flag A way to describe a female masturbating by rubbing her clitoris. Yo, I walked in on my sister and caught her ya-ya'ing the sisterhood! ya-ya'ing the sisterhood by KDaddy923 September 18, 2006 0 0 Get merch Get the ya-ya'ing the sisterhood mug. Buy Now — $32.95 See more merch