Yankscum Share definition Flag n. a term used by the few uneducated europeans in an attempt to get the attention of a couple Americans. European1: Oi! yuu Yankscum!! American1: Get lost inbred freak. Yankscum by Pseudonymomgwtfbbqx3 March 7, 2010 0 0 Get merch Get the Yankscum mug. Buy Now — $32.95 See more merch