vyhledat jakékoliv slovo, například ratchet:
A woman with a very flat chest, such that it resembles her back. Only the nipples give it away.
The girl at the party was pretty, pity about her two backs.
od uživatele DesDDD 24. Září 2007
A "twoback" is a woman with no visibly protruding breasts. See also: "flat as a board."
Lucy the twoback rarely goes on second dates.

"Is that a stop sign or a twoback?"
od uživatele snowshoesny 26. Září 2009