buttslammed Share definition Flag the word used to describe a thouroughly cataclysmic ass kicking, both mentally and/or physically The Toronto Maple Leafs, lost 10-0, they got BUTTSLAMMED!orJesus got Buttslammed by those Jews! buttslammed by nigel does it too November 2, 2009 0 0 Get merch Get the buttslammed mug. Buy Now — $32.95 See more merch