Tittyfuck Share definition Flag When a male takes his penis and impales it between a female's mammilla... only works when the female has big boobs, at least a c-cup "HOLY SHIT, her DD boobs were great when I was tittyfucking her last night!" Tittyfuck by Robert Battersby September 28, 2005 Words you can keep railfan mug chonk mug chud mug based mug 67 mug slime mug mogging mug chopped mug thot mug glazing mug huzz mug yams mug larp mug unc mug cracked mug simp mug baddie mug bop mug lolcow mug