chonk up
English
Verb
chonk up (third-person singular simple present chonks up, present participle chonking up, simple past and past participle chonked up)
- (intransitive, Internet slang, especially of an animal) To become fat or large, especially from overeating or overfeeding.
- 2023 February 27, daffodil0127, r/Feral_Cats[1], Reddit, archived from the original on 1 December 2024:
- My buddy has chonked up in the year and a half I’ve been feeding him.
- 2024 June 20, kmrikkari, r/dechonkers[2], Reddit, archived from the original on 1 April 2025:
- No more free feeding for either of them, which is good because the void was also starting to chonk up.
- 2024 July 19, corgisfirst, r/dechonkers[3], Reddit, archived from the original on 30 March 2025:
- Even still, I worry she's starting to chonk up.
- 2024 November 11, nyatsomi, r/britishshorthair[4], Reddit, archived from the original on 30 March 2025:
- Some get chonkier after a while. I've seen bshs [British Shorthairs] who chonk up after they hit 1y, and some that need to hit 4y to reach the ultimate chonkiness level.
- 2025 July 29, Aggravating-Can-945, r/britishshorthair[5], Reddit, archived from the original on 31 July 2025:
- Sebastian chonking up finally after two years.
- 2025 August 10, ItsAllOneBigNote, r/catstairs[6], Reddit, archived from the original on 16 December 2025:
- I'm curious to hear how he sounds when he chonks up for the winter 🤣
- (transitive, Internet slang, especially of an animal) To make fat or large, especially by overfeeding.
- My neighbor has been chonking up her cat.