Svelt

[Couch Potatoe]

Slim and trim, like the young [Prince of Town].

[Mark Zuckerberg]

The word is actually spelled svelte and is documented in (non-urban) dictionaries.
It means: Slender or graceful in figure or outline; slim.

[Renato]

A tern used to describe someone who has superior muscle tone and muscle size. Makes most other men look like total sissies when within a 15 foot radius.

[Kit]

Pronouced Suh-velt. Super sweet and/or cool.