Originally an aeronautical term that is the equivalent to the modern "Loud & Clear". In slang usage, it means "great, fine"; popular in New England, it was made famous in "Buffy: the Vampire Slayer" from its overuse by the rogue slayer Faith.
"No worries, B. That vamp tried to kill us but I got mad skills. We're five-by-five here."
by Sikozu Sta.-Ána September 4, 2003
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five in the goo and five in the poo!

^ fist in the pussy and a fist in the ass
i gave a girl a five and five last weekend.
now shes wearin a diaper
by TripleNickle April 12, 2006
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a term used in the military to say everything is in order. another way of saying squared away or ship shape.
"Is everything in order?"
"Everything is five by five"
by rickysayshi January 1, 2009
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In R/T (radio telephone) parlance, a report on signal strength (1 - 5) and quality (1 - 5).

Hence, "I ready you two and four" means "your signal is weak, but I can hear you clearly".

By inference, "five and five" means "really good" ?

"How's the pizza ?"
"Five and five."

"We dropped into <drinking establishment> - the beer was crap, but the scenery was five and five."
by Eighth of Seven January 8, 2007
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Before this phrase was used on Buffy, it was used on Jag, episode 10 from season 1. Austin spoke it to Rabb while she was in the hospital room.
This episode aired a whole year before Buffy season one hit tv.
by Miss. Rogueh October 6, 2011
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Someone who's as tall as wide
She's definitely five by five, a real stout gal
by Tim Jilbert April 17, 2003
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