Noun: knee-trembler
Usage: informal
Usage: informal
- Act of sexual intercourse standing, usually in an alleyway or against a wall, with the man standing and the woman's knees raised
"The couple engaged in a hasty knee-trembler behind the nightclub"
Derived forms: knee-tremblers
Type of: carnal knowledge, coition, coitus, copulation, intercourse, relation, sex act, sexual congress, sexual intercourse, sexual relation