Another term for male
masturbation, due to the act sounding much like that of
yogurt being stirred.
The phrase "stirring the
fruit-bottomed yogurt" may be used to denote a homosexual male masturbating, but is not required.
"Hey,
man, quit stirring the yogurt.
Lost's on."
"Gimme a minute, dude! The
fruit's not off the bottom yet."