This is a dumb question but im totally serious...?

Question

please dont make fun of me but i really dont know what this means. what exactly does it mean when someone eats a girl out?

Answer 1

when someone eats out a girl, it means they are giving the girl oral s*x.

Answer 2

Well, if it is a serious question, it is the same as fellatio (oral s*x for men), but performed on women: cunnilingus (oral s*x for women).