Its corn tiktok song lyrics its corn a big lump of knobs

I think I can help you with that!

The song you're thinking of is likely "It's Corn" by the TikTok creator and rapper, Lil Huddy (Charli D'Amelio's ex-boyfriend). The lyrics you're referring to are:

"It's corn, it's corn, it's a big lump of knobs"

The song became super popular on TikTok and other social media platforms, and its catchy hook and relatable lyrics made it a fan favorite.