Yerd Share definition Flag A girl who is a dummy or tramp. A girl who gets around alot and does not even care. Mahad: Yo richard! That girl is bad as shit! Richard: Yeah! Too bad she a YERD!!!! Yerd by KyoneTheGreat March 18, 2011 0 0 Get merch Get the Yerd mug. Buy Now — $32.95 See more merch