A reference to Hirohiko Araki's long running manga (and anime) series Jojo's Bizarre Adventure. Usually pertaining to things simular to or referencing Jojo's Bizarre Adventure themes such as floating or exploding Kanji, posing that covers the face and aesthetic of both the show and manga.

A few weeks ago, no one had “cheugy” in their vocabulary . Now everything is saturated with the word. It’s in our heads. It’s in our homes. Everyone is asking: “Am I cheugy? Am I a basic ass bitch? Am I GUILTY of being cheugy?”

The proliferation of cheugy in the mainstream discourse can only be attributed to one source: mental terror. It’s an orchestrated psychological trap to make you question your tastes and interests in the eyes of others.

You are not a cheug. YOU’RE PERFECT!!!!

It is very suspicious that the cheugy mascot is a Minion, a literal cyclops, a deformed
yellow panopticon in overalls ... do not let the all-seeing eye to control you. Be vigilant. Resist cheugy psyops.

Basically anything that comes out of a persons mouth

A Jojo reference is a reference to something in the Jojo's Bizarre Adventure Manga. Sometimes, people make Jojo references on accident, or on purpose. Like someone saying "I refuse." with the Rohan face, Or making a donut Joke.