Titser Share definition Flag A woman whose tits are very large and does not wear a bra so they jiggle and bounce for everyone to see. Also u can see her nipples. Look at that woman, her tits are huge! And delicious!Yeah dude, she's a titser. Titser by Skello194 July 16, 2013 0 0 Get merch Get the Titser mug. Buy Now — $32.95 See more merch