Sounds like this come from viral stunt clips shared on soundboards, where a shocking eating moment is clipped and pitch shifted to make it funnier and more revolting. The low pitch version keeps the original premise intact while exaggerating the crunching into a meme reaction sound. It has no clear credited creator or source work in its listing, so its life is mostly online, passed around for gross out edits, reaction videos and short form posts where an over the top disgust cue is needed instantly without any setup or explanation required at all.