Lindsay Lohan — Back to Work … Cracking Rehab Jokes

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Lindsay Lohan can take a joke — even when she”s the butt of it … and she wasted no time teeing off on her latest rehab stint while guest hosting “Chelsea Lately.”

Linds just wrapped her first gig since getting out of rehab on Tuesday — and sources inside the show tell us she freely cracked jokes like, “I”ve been on a 90-day court ordered vacation.”

In LiLo”s defense … she probably didn”t write the jokes.

We”re told Lindsay also busted on Chelsea Handler for drinking too much — and overall was “very funny” … especially during the round table segment with comedians Jen Kirkman and Fortune Feimster.

Linds also got some eye candy for her troubles — getting to interview Dylan Bruce from the BBC show “Orphan Black.”

0801_dylan_orphanblack_bbcDon”t say Chelsea never did anything for you, Lindsay.

The taped episode is scheduled to air Monday.