Chief Keef — Ordered to Jail … For Blowing Off Child Support

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Police in Chicago have been told to haul Chief Keef”s deadbeat ass to jail … if they see him … after the 17-year old rapper blew off a child support hearing, our sources has learned.

We broke the story … Keef was ordered to appear in court  on September 5 to explain why he hasn”t forked over more than $20k in child support payments to his baby mama.

Problem is … Keef no-showed — so the judge issued an order for his arrest, which means if cops see his ass, they can drag him right to the slammer and hold him until he pays roughly 1/5th of his child support debt.

We know he can afford it — but it”s unclear why he”s refusing to pony up. Attempts to reach Keef for comment were unsuccessful.