quick tipped

A person that is part of a school, be it student, faculty or administration, who is the subject of an anonymous tip. Most school districts have an anonymous tip line that can be used to report incidents, usually illegal. Oftentimes however, the tip line is misused to report false or irrelevant info.

Can also be a synonym for "snitched on"

Brad: Dude where's Kim been?

Matt: Oh you didn't hear? She got quick tipped for bringing a vape to school