This refers to someone who is mostly skinny but has some muscle. This person has almost no fat on their body. Skripped means they are not jacked or very thin, but both.
The sound preceeding an emulated tiggerbounce. The skippety covers the run-up, the bomp is the noise made during the bounce.
Spot target, begin skippety phase, run towards target making the word skippety stretch as long as the run takes - followed by a bomp once physical contact with the target occurs, resulting in a pounce or tigger bounce.