titjob UK /ˈtɪt.d͡ʒɒb/US /ˈtɪt.d͡ʒɑb/ noun2 •(slang, vulgar) A sex act in which one's penis is inserted between a partner's breasts and stimulated, usually to the point of ejaculation.After all, he thought hopefully, the squaw from last night was more or less fuckable. In fact her big, sagging breasts were perfect for a tit-job; it had been three years since his last time. — 2000 •(slang, vulgar) A breast augmentation or, less commonly, a breast reduction.I heard something about GA had a titjob?????? I think she's doesn't have to, she's good enough without!!! — 1996 formstitjobs