Forty-Three is a vulgar and horrific sexual position in which a female puts her legs behind her head while a male inserts his penis or other object(s) into the female's vagina.
"James saw me doing yoga, and when I put my legs behind my head he tried offering me a Forty-Three. We broke up immediately."
by Skanago:g August 20, 2016
a form of illegal narcotics, also known as cocaine
Hey man do you got any forty three on you.
by jonny boy123 November 26, 2006