A member of the opposite sex with whom you would not have sex.

This is based on an ingenious recalibration of the conventional 0 - 10 scale so that 5 is the equilibrium point at which you would just have sex with a person, but not really be enthusiastic about it. The magnitude of ratings above 5 denotes how badly you want to bone, and the magnitude of ratings below 5 denotes how vehemently you'd avoid boning.

An alternate definition of a rating of 5 useful for males is describing someone which you would neither thrust into nor attempt to remove from your penis.

Recognized antonyms: Super-5, Supra-5
"I would rather brush my teeth with jizz than have sex with her, she's incredibly sub-5. She's a 2."

"Eh, I don't really care, shes exactly a 5. I'd let her climb my dick, I guess."

"I'd pay $100 to put my dick in her hair. She's a 9."
by Gil Barry March 16, 2010
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A person who can run a mile under 5 minutes (usually referring to on a track). This person, if male, is pretty cool. However, if a girl can run sub 5 for a mile then they are basically the coolest person in the world. Imagine maintaining one minute and 14 seconds in the blistering sun for four freakin laps around a boring, oval track. Yeah, we are just THAT cool.
Dude, that sub 5 miler is a boss! Yeah, and her Nike Zoom Victories are sick!!!!!
by thebagelshop March 17, 2010
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When an incredibly insecure Haagster claims to be the DOM after the one true DOM, Liam (the hotdog stand), instructs the Haagster to believe he himself as a DOM, obeying the Liam Dom’s instruction, therefore the Haagster becomes the Tony 2-5 SUB.
Liam (The Hotdog Stand): Haagster, I want you to believe that you are a DOM!

Haagster (The SUB): I’m the DOM! I was born in the DOMinican republic and I own a DOMinos!

Liam (The Hotdog Stand): That’s a good Tony 2-5 Sub.
by I’m A Hotdog Stand November 4, 2022
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