1) A retarded, stupid girl who doesn't seem to get that she's just not funny, smart, intelligent or witty.
2) An incredibly moronic girl on the Linkin Park Message Board, who doesn't cease to show her idiocy.
3) To commit an act more stupid or equally as stupid as the person in definition #2.
1.) Oh my God, Annie! That was the most unfunny, stupid thing ever. You just pulled a Carouselp!
2.) Holy shit, lil' Johnny! Did you see that? Carouselp didn't know what the hell an understatement was! What a fucking moron!
3.) Hey look! Dan just pulled a Carouselp and made a total dense ass out of himself.