tit boff Share definition Flag A type of "offbeat intercourse" where the cleavage is substituted for the nether regions. I was going to give it to her in the butt but I tit-boffed 'er instead. tit boff by Johnny Chingas May 13, 2005 0 0 Get merch Get the tit boff mug. Buy Now — $32.95 See more merch