chonk /t͡ʃɒnk/adjective 1noun 1verb 1forms 3phrases 1 adjective1 •(Internet, slang) Adorably fat or large.A Twitter post intended to celebrate a funny photo of Abby, a “chonk” sea otter at the Monterey Bay Aquarium in California, instead stirred an online maelstrom of criticism, KNTV reports. — 2018 noun1 •(Internet, slang) An adorably fat or large creature, particularly a cat.Candy's Cat Rescue will have adoptable chonks, slonks and floofs on hand for you. — 2019 verb1 •Synonym of chonk up.Buckets has been chonked — 2023 formschonked · chonking · chonks Phrases with chonk chonk upTo become fat or large, especially from overeating or overfeeding.