What is Eggboy?
1.
a male child who's head resembles an egg.
he's an eggboy
2.
Eggman's sidekick. You know, 'Eggman: Fighting Crime The Old Fatshioned Way'.
'Oh no Eggman! A giant moustache has lit up the night sky! The city must in peril from another dastardly attack by the Blue Hedgehog!'
'To the Eggmobile!'