Definition of "tip off"
tip off
verb
third-person singular simple present tips off, present participle tipping off, simple past and past participle tipped off
(idiomatic, transitive) To alert or inform (someone), especially confidentially.
third-person singular simple present tips off, present participle tipping off, simple past and past participle tipped off
(idiomatic, transitive) To alert or inform (someone), especially confidentially.