The back fat directly behind the titties on an obese woman, her back tits.

The phenomenon of having to come out as bisexual to the same person/people repeatedly because they assumed or hoped that your sexuality was a "phase." Refers less to the holiday and more to the 1993 Bill Murray comedy film in which the main character experiences the same day over and over.

When overly obese women have what appears to be another set of tits on their back.

When the fat on a woman's back resembles a pair of breasts.

Fat deposition resembling that of a female bosom located on the back of male or female subjects. Usually occurring in pairs, they lack an areola, nipple and are incapable of lactating except in a rare condition called Conditional Lactare Obesus Perspiration aka the CLOP. see CLOP for more information.