A butt pocket is similar to an asshole. Butt pocket is an insult for someone being absent minded or ignorant. Some one being irritating or annoying would be considered a butt pocket. A butt pocket is just an insult.

Referring to women who are sexually or romantically attracted to other women. Applies to both lesbians and bisexual women, as it is only the same-sex attraction that matters, not any other attractions the women may have.

Originates from the Greek poet Sappho, a bisexual woman from the Isle of Lesbos, from which we get the term lesbian.

the back pocket of a pair of jeans.
vernacular on the east coast.

n. A pocket in the back of a pair of leggings used to store items such as keys, money, or a cell phone while excersizing. Often used as a comparison for something that is to small or unuseful.