1. Act of sexual intercourse standing, usually in an alleyway or against a wall, with the man standing and the woman's knees raised

Derived forms: knee-tremblers

• number theorist
• number theory
• number two
• numbering
• numberless
• numberplate
• numbers
• numbers game
• numbers pool
• numbers racket
• numbfish
• numbing
• numbles
• numbly
• numbness
• numbskull
• numdah
• numdah rug
• numen
• Numenius
• Numenius arquata
• Numenius borealis
• numerable
• numeracy
• numeraire