Levi Johnston isn't laughing about a Tonight Show skit that mocked him.
On the NBC late night show Wednesday, William Shatner performed a Beat-poet rendition of Twitter posts believed to be written by Johnston, 19. ("What's the deal with taxi drivers not speaking English, is it a law against it?" Shatner read.)
Turns out, the posts were really those of a Johnston impostor.
"We are demanding a retraction," Johnston's manager Tank Jones tells Usmagazine.com. "We are pissed. For a major network to come on TV and report something without fact checking ... wow. You can say what you want to say, but don't lie."
Johnston - who hasn't seen the skit - has "never had a Twitter account and was never on Facebook," Jones tells Us. "He took his MySpace down five years ago."
Adds Jones, "People are looking for some sensational story so bad. Most of the outlets we haven't even went to."
New York Post's Page Six also reports that Johnston is "getting cold feet" about his upcoming Playgirl appearance because he is "worried about how his manhood may look."
But Jones tells Us, "No, we have not discussed Levi's manhood. We're ready."