Hornball Share definition Flag a very very horny person who cannot stop thinking about sex or having sex the feeling of sex. sandra is always thinking about sex and tells tim (her friend) about her kitty getting all wet all the time ... Tim says you hornball! Hornball by Sandra Arambula December 27, 2003 0 0 Get merch Get the Hornball mug. Buy Now — $32.95 See more merch