Cringe

(adjective/noun) a person or thing that makes people feel uncomfortable.

(verb) to shrink or draw back; to show discomfort towards something or someone.

"Look at this cringe I found."
"Wow, that is really bad. It's not even funny."
"I know, right?"

"The way she tries to make friends is just cringe. How will a greeting like that make people like you?"

"He cringes whenever your uncle tries to crack a joke."