LRCH Share definition Flag LRCH (Little Red Cunt Hair). When you are trying to describe something that is very close. He won the race by a LRCH. The race was so close that he won by a LRCH. LRCH by ljohnstn January 14, 2017 0 0 Get merch Get the LRCH mug. Buy Now — $32.95 See more merch