(horse breeding) The female offspring of a horse's sire/dam that is by/out of a sibling of its other parent. / (horse breeding) The female offspring of a horse's dam and a son of its sire.

(slang) A woman should prioritize her female friends over her boyfriend or husband.

(US politics) A politician's public repudiation of extremism perceived to be allied or associated with them or their political party.

plural of Sister Souljah moment

The sister of one's boyfriend or girlfriend. / Girlfriend of one's brother or sister. / The sister of one's ex-spouse.

plural of sister-out-law

(informal) A very close female friend.

plural of sister from another mister

plural of sister from another mister

(slang, humorous) A man's hand, used for masturbation.