693

693 is a type of threesome. It starts off with 2 females doing 69 and a guy hitting on of the girls from the back.
Jennifer: hey have you tried that new sex position?
Jack: new sex position what are you talking about

Jennifer: 693
Jack: I have but I've never tried it
Jennifer: pussy
by Thepiekiller31 November 13, 2016
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693 Syndrome

You meet a possible one-nighter. You think she's a six.
You fuck her. You tell your friends she's a nine. (you might even start to believe it).
A week later you realize with disgust that you actually just had sex with a three.
Guy sees female. "She is definitely hot enough for me to fuck with pride".
Guy fucks female. "I got lucky. Can't believe that piece of ass even went for me".
Time passes... "AWE FUCK!!! I just fucked a whale".

Guys Friend: "You just fell victim to 693 syndrome!" Haha sucks for you
by Mr. HoneyTwizzler August 23, 2011
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