From Longman Dictionary of Contemporary Englishmake a fool of yourselfmake a fool of yourselfSTUPID/NOT SENSIBLEto do something stupid that you feel embarrassed about afterwards and that makes you seem silly Sorry I made such a fool of myself last night. I must have been drunk. → fool
Examples from the Corpus
make a fool of yourself• I met Sylvester Stallone one time and made a complete fool of myself.• I have made a fool of myself.• Your biggest fear is probably the fear of making a fool of yourself and this is what is making you nervous.• Athletes will seldom make fools of themselves for the press.• The mature glider pilot would never hesitate to make a fool of himself in the interests of safety.• One thing Congress apparently can do in a bipartisan spirit is to make a fool of itself.• A true cat is often willing to make a fool of herself, but only on her own terms.• She had truly made a fool of herself.• And why should you make a fool of yourself now by trying? 