booba Share definition Flag Misspelt version of boobs. It was used first in a 4chan thread when an anonymous 4channer replied to a thread with "booba" and an image of tuxedo pepe with its eyes stretched out. - Hey what do you think of that girl there? She is pretty hot, right? - Booba booba by oyveyshutitdown October 19, 2020 Get the booba mug.