sickkore Share definition Flag The word "sickkore" come from the root word "sick" as in tight or awsome. Another word for "sick" or "tight". Guy 1: Dude Warp Tour this year was down! Guy 2: Yea, I know man! Some sickkore stuff up on stage! sickkore by ALEGRASTARR August 26, 2009 0 0 Get merch Get the sickkore mug. Buy Now — $32.95 See more merch