(baseball) For a batter to look for a four-seam fastball.

(Australia, colloquial, informal) Welfare or social security, including unemployment benefits, especially such welfare paid to Aboriginals.

(idiomatic) To remain idle when action is needed, perhaps because of fear, ignorance, complacency, indecisiveness, or dislike of the person(s) or situation.

Offering a seat to somebody.

(cycling) Having handlebars that curve backwards, so that the rider can sit straight rather than hunching forward.

A bicycle of this kind.

(colloquial) To remain uselessly in a place or situation, without taking any action.

plural of sit-and-wait predator

Synonym of ambush predator

plural of sit-up-and-beg