egg on your face

egg on your face

To be embarrassed after being caught doing something wrong. Among the possible origins are being red in the face about being told you left a smear of yolk around your mouth after breakfast or the humiliation that performers suffer when unhappy audiences pelt them with raw eggs. Closer to the mark is a barnyard explanation: farm dogs that develop the taste for raw eggs and break into the henhouse for a treat have that hang-dog look when confronted by their angry owners.
See also: egg, face, on