Tharp Train Share definition Flag Used when you have a 5 friends, and 5 wheelie chairs and do some sort of limbo while continously saying, "Tharp, Tharp, Tharp" "Yo! Join the Tharp Train!" "AWESOME! COOL" "Tharp, Tharp, Tharp, Tharp, Tharp." Tharp Train by dickdragondog November 24, 2010 0 0 Get merch Get the Tharp Train mug. Buy Now — $32.95 See more merch