The name for "Snake" in Metal Gear Solid 3 : Snake Eater. He is called "Naked Snake" because when he's sent into his mission, he doesn't carry any weapons with him (to be naked is to lack any armaments whatsoever).
Sounds kinda kinky, but we'll learn more in November 2004, eh? ^-^

Literally everyone, ever. Including the writer of this definition.

to have no skin whatsoever on your penis...hence making it naked....