Kelahio Share definition Flag The meaning of a "Kelahio" is a person who doesn't put any deodorant or cleaning products of any kind. Gets rejected by most girls and doesn't have to much success in life "Dude, put some gel in your hair, don't become a Kelahio." Kelahio by krason September 28, 2015 0 0 Get merch Get the Kelahio mug. Buy Now — $32.95 See more merch