Chud is a slang term used online to refer to people who are considered far from socially normal and unpleasant to be around. The term, undergoing slight changes in its meaning over the decades, has maintained its usage as an offensive and negatively connotated word. Starting in 2020, the term spawned the Chudjak, Avatar Chud, and GigaChud memes as it was increasingly connected with the alt-right.

https://knowyourmeme.com/memes/chud