[make] an exhibition of {oneself}
1
to behave in an embarrassing or foolish manner in front of other people, in a way that that makes them mock one
The idiom "make an exhibition of oneself" originated in the early 19th century and refers to behaving in a way that draws excessive or inappropriate attention to oneself, often with the intention of impressing others or seeking approval. The word "exhibition" in this context refers to a public display or demonstration, such as a performance or show. The idiom can be used to describe a wide range of behaviors, from showing off to acting inappropriately or embarrassingly in public. It is often used in a negative sense to criticize someone for being attention-seeking or lacking in self-awareness.
- He is making an exhibition of himself by arguing loudly with his friend in the restaurant.
- If you keep shouting and making a scene, you'll make an exhibition of yourself and embarrass us all.
- She always makes an exhibition of herself by singing loudly in the office.