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./