SOURCE: Bernstein, Jüdische Sprichwörter und Redensarten.
Literal translation: The eggs want to be smarter than the chickens. Compare:
The eggs are teaching the chickens. | Di eyer lernen di hiner. | .די אייער לערנען די הינער
SOURCE: Stutchkoff, Der Oytser fun der Yidisher Shprakh