[make] an ass (out|) of {oneself}
1
to behave in a manner that is considered foolish or immature
The idiom "make an ass of oneself" means to behave in a foolish, embarrassing, or undignified manner that may lead to public humiliation or ridicule. It is derived from the term "ass," which is a colloquial and slightly derogatory term for a person who is behaving foolishly or acting inappropriately. This idiom is used to describe situations in which someone's actions or words have caused them to appear ridiculous or imprudent to others.
- I know Greg is only trying to impress Lisa, but he's making an ass out of himself by telling so many corny jokes.
- At the party, he made an ass of himself by dancing on the tables and spilling drinks everywhere.
- She realized she had made an ass of herself by mispronouncing important names during her speech.
- His attempts to impress his new colleagues ended up making an ass of himself when he tripped and fell.
- Sometimes, it's better to stay quiet than risk making an ass out of yourself by saying the wrong thing.