The opposite of a 10-4, C-B radio talk..
Geeves: "I say, George, Would you care for another Toxic-Jager-Bomb"
George: Barf, Barf, "Thats a 10-10"
by ShearBags September 4, 2007
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to classify something as top quality, the best. Basically describing something on a scale.
Aye, that cake was on 10.

"You seen that girl fool?" "Yeah, she was on 10!"
by Kyshaun February 29, 2008
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It's a number you idiot what are you doing searching this up you know very well what a number is.
10,9,8,7,6,5,4,3,2,1
abcdefg 10 kids are stuck in that tree
by qu33r b0i November 25, 2017
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Phrase used to agree strongly to a statement or affirm what has been said.
Man 1: "I sure do fucking hate genital warts"
Man 2: "10 on that, brother"
by Anonymous May 13, 2003
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Quick and somewhat widely used word to claim someone of the oppisite sex is of the top percentile in looks, sexual skills and/or personality.
by Brandon Wann March 30, 2005
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Means two in the binary (base-2) numeral system.
Means three in the ternary (base-3) numeral system.
Means four in the quaternary (base-4) numeral system.
And so on...

One exception is the unary (base-1) system, where 10 probably means "WTF? ^^".
Caveman: 10 is WTF? ^^!
Computer: 10 is two!
Octopus: 10 is eight!
Modern human: 10 is ten!
The Hitchhiker's Guide to the Galaxy: 10 is thirteen!
Haxxor: 10 is sixteen!
God: 10 is infinite!
by Oxeye Daisy October 15, 2006
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