He accused the British national broadcaster of putting "horrible" words in his mouth and claimed it had "to be taught a lesson".
Arguing the corporation had "admitted they were guilty", he said it was now only a question of how much he would get in damages after bringing a $US10 billion ($A14 billion) lawsuit over the editing of a Panorama documentary.
Trump made his remarks during a lengthy speech in Washington, DC, to a Republican congressional fundraising dinner for the midterm elections in November, where his party risks losing control of both the House of Representatives and the Senate.
His comments came on the same day as former Google boss Matt Brittin was unveiled as the new BBC chief.
One of the most pressing issues in the 57-year-old's in-tray when he takes the reins on May 18 will be the legal action launched by Trump over an episode of Panorama broadcast in 2024.
The documentary program has faced criticism for giving the impression the Republican president had encouraged his supporters to storm the Capitol building on January 6, 2021, after he had lost the election to Democrat Joe Biden.
The allegations led the then BBC director-general Tim Davie to announce his resignation.
BBC chairman Samir Shah apologised on behalf of the broadcaster over an "error of judgment" and accepted the editing of the 2024 documentary gave "the impression of a direct call for violent action".
The corporation filed a motion to dismiss the Florida lawsuit earlier in March, in which it warned of the "chilling effect" it would have on news reporting.
It has also challenged the jurisdiction of a Florida court to hear the case given the program was never aired in the state or the US.
Highlighting compensation he had secured from other major news outlets, Trump told Republican supporters: "It's actually pretty good. You know, if you bring lawsuits against these guys, they're so corrupt that they pay it."
He added: "This one hasn't been determined yet. How about (the) BBC.
"When they put me out and they have me saying ... things that I never said that were terrible.
"They put words in my mouth, sentences and paragraphs in my mouth that were so horrible.
"So we brought a suit against them, and they admitted they were guilty. Can you believe that's how crooked they are? Now it's only a question of how much do I get.
"No, they have to be taught a lesson, because they're crooked. They're crooked people."
The BBC has been contacted for comment.
10°C