skip bail
to run away and not come to trial and therefore give up any money that you may have paid the court to guarantee that you appear
The man skipped bail and went to another city before he was arrested again.

[TahlilGaran] English Idioms Dictionary ▲

skip bail
See: JUMP BAIL.
{v. phr.}, {informal} To run away and fail to come to trial, and so to give up a certain amount of money already given to a court of law to hold with the promise that you would come.
The robber paid $2000 bail so he wouldn't be put in jail before his trial, but he jumped bail and escaped to Mexico.

The man skipped bail because he was afraid the court might put him in jail for a long time.

[TahlilGaran] English Idioms Dictionary ▲