Gahoy Share definition Flag Someone who is experiencing the downsides of puberty. Total zits, voice cracks every second, and are usually 14-19. Can be seen with hats on backwards. *in a hotel, where a gahoy is spotted in full swim gear* Gahoy: Uhheeuheee where's the pool? Gahoy by Ilikecock123 March 9, 2009 0 0 Get merch Get the Gahoy mug. Buy Now — $32.95 See more merch