someone who laughs at almost everything, is sweet and sincere, loves to party, dances like no one is watching, is a total flirt, is very curvaceous and almost sexy, doesn't care what people think about them, wears crazy clothes, reads tons of teen fiction, watches tons of chick flicks,and is normally blonde.
A: Did you see Terri's outfit today
B: Yeah, what a lolosaur
A person, animal or an object who lols excessively.
lololololololol, I"M A LOLOSAUR