Thunderkitten

Referring or describing to a really hot/sexy young girl/teenager/tween (high school cheerleader, hs volleyballah, Selena Gomez) but due to extracurricular activities; one who just woke up; no makeup on, that looks like shit.

-"Damnn did you see Selena Gomez w/o makeup on Variety? She looked like a thunderkitten!"
-"Dude, your lil sister looks like a thunderkitten."
-"No matter how much makeup she can put on herself, Miley Cyrus will ALWAYS look; be a thunderkitten."

Thundercat

Referring or describing to a really hot/sexy woman (MILF or cougar) but due to extracurricular activities; one who just woke up; no makeup on, that looks like shit.

-"Damn mayn, didju see that girl Jessika today? She's lookin' like a thundercat!"
-Megan Fox is HOT, but i bet she looks like a thundercat without makeup.
-Most hot/sexy gurls NEED makeup, or they'll look like a thundercat.
-(Girl) "Eyy baby, good morning!"
(Guy) "Whoa, shit.. Uhh slap some makeup on coz you look like a thundercat."

8👍 10👎