It's [Freaks, by Timmy Trumpet](https://www.youtube.com/watch?v=r1dquH_KOQc) -- I just googled the lyrics lol. YouTube has a lot of remixes just slowing the song down as in this Tik Tok, including [Trap Diamond's absurdly slow and bass-boosted rendition](https://www.youtube.com/watch?v=oYvJVdThL6I). [A Skunk's remix](https://www.youtube.com/watch?v=rnDRRRaqxqw) is pretty close in tempo to the tiktok you linked, but I don't think it's the same audio. Hard to conclusively disprove because I can't get the YouTube video to play anywhere close to TikTok's obnoxiously loud audio volume. TikTok also doesn't seem to have datestamps, so there's no way of looking for remixes that were popular around the same time as ["slow freak's" first use on the site](https://www.tiktok.com/@usamilitary77/video/6969867849804352769) (I'm kinda surprised a site without datestamps or volume control is so popular).