Cardi B Vows to Start a GoFundMe for 'Tiger King' Joe Exotic, Free Him

The incarcerated Joe Exotic has one new champion in his corner -- and it's someone with a big voice and a major platform ... one Cardi B, who says she wants him freed.

The NY rapper went on a Twitter rant late-Friday night, with a bunch of messages in support of the 'Tiger King' star -- who's currently locked up for allegedly attempting to facilitate the murder of his onscreen nemesis, Carole Baskin, who Cardi doesn't like either.

She wrote of Baskin -- who runs a big cat animal rescue out of Florida, seemingly on the up-and-up -- with contempt, saying ... "Carol you think you slick bitch 😑😑😑😑." CB went on to say, "Who you think is more wrong? Narcissist joe? Or Greedy Carol? And Why?"

Very Trump-like, eh? BTW, Cardi also retweeted a meme that perpetuated a theory floated throughout the entire docuseries ... that Carole might've had her multi-millionaire husband killed and fed him to the tigers they had. She's vehemently denied that several times, and no evidence ever suggested she did that. No arrests were ever made in the case either.

The biggest vote of confidence, however, came when Cardi tweeted that she was itching to start a GoFundMe account for Joe, adding ... "He shall be free." Seems like she sympathized with his side of the story -- even though he was convicted and ultimately jailed.

As we reported ... Joe filed a $94 million lawsuit from prison pretty recently, accusing different governmental agencies of railroading him and allegedly discriminating against him with the animal cruelty charges he got slapped with and for which he was convicted.