From Longman Dictionary of Contemporary Englishmake an exhibition of yourselfmake an exhibition of yourselfSHOW OFFto behave in a silly or embarrassing way SYN make a fool of yourself → exhibition
Examples from the Corpus
make an exhibition of yourself• Sam got drunk and made an exhibition of himself as usual.• Somehow or other he must surely be making an exhibition of himself.• Even the mouse and the cynic are constantly making an exhibition of themselves.• It would be dreadful if one ran out while the children were present and she made an exhibition of herself by screaming!• I didn't want you making an exhibition of yourself. 