fly_the_coop
1. [ verb ] flee; take to one's heels; cut and run
Synonyms: run run_away lam head_for_the_hills hightail_it escape bunk break_away turn_tail take_to_the_woods scarper
Examples:

"If you see this man, run!" "The burglars escaped before the police showed up"

Related terms: leave flee skedaddle fugitive