Used to ask whether someone has any siblings.

Alternative form of if my aunt had balls, she'd be my uncle

The state, or kinship of being sisters. / The quality of being sisterly; sisterly companionship; especially, the sense that women have of being in solidarity with one another.

Feminine variant of brotherly love.

The property of being sisterly.

Of or characteristic of sisters.

In the manner of a sister, behaving as one would expect of a sister; as a sister, as sisters.

plural of sisterfucker

(India, vulgar, offensive) An extremely undesirable person. / (literally, vulgar) One who engages in incestuous sex with their sister.

(African-American Vernacular) Sister, girlfriend (as a familiar term of address between women).