one up girl

A girl that you can always go to for sex, like a whore, but you know her, and it is free.

Hey, I got my one up girl on speed dial, want to have some fun?

retard siren

When the retarded kids at school run around shouting shit that is incomprehensible and the staff don't care

Person 1: Well, there goes the retard siren again.

Person 2: Damn, that's the third time today.