Occurring between people of the opposite sex (sometimes, but not always, specifically between heterosexual people).colloquial
Related to conventional sexual intercourse.slang
Not using alcohol, drugs, etc.colloquial
Not plus size; thin.
Strait; narrow.rare
Thorough; utter; unqualified.slang
Of spirits: undiluted, unmixed; neat.
Sent at a full rate for immediate delivery; being a fast telegram.historical
Concerning the property allowing the parallel transport of vectors along a course that keeps tangent vectors remain as such throughout that course (a course which is straight, a straight curve, is a geodesic).
OK, all right, fine; in a good state or situation.informal