To go behind someones back and betray them

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.

To enviously kill a friend or someone who trusted you unbeknownst to them

To cut someone out of a transaction (e.g. drug deal, embezzlement, etc.).

The anus, vis-a-vis anal sex.

Refers to a person's anus in the context of anal intercourse.

Back door

1) A secondary entry/exit door, normally located at the rear of a propety.

2) A slang term for the anus