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!
The number that represents a couple that consists of one very slender partner and another very obese partner. Seeing the two side by side is like seeing the number 10.
Did you see those two? She's fat as hell and he's almost emaciated. God damn, it's like seeing the number 10.