has Share definition Flag Plural of "ha". Shorthand for "ha ha", "haha", "hahaha", etc. Over texting/instant messaging- Person 1: Has, that was a really funny joke. Person 2: Has? Person 1: Many has. I mean, you don't say "rabbitrabbit" for two rabbits. has by willbchou November 16, 2011 Get the has mug.