There are two nicknames for him. Mangenius is used during successful runs, but when his teams hit losing streaks he is derisively called Mangina.
airbear
eric
eric
Eric Young
Big E or just E
Eric Clapton's birth name is Eric Patrick Clapton
Her son is called Hugo Eric Louis or "Grub" as a nickname.
Rica / Ricka Eric or Rick are male names. Erica is Female name.
Her son is called Hugo Eric Louis or "Grub" as a nickname.
butterbean
The very entertaining Esch is known as Butterbean.
Her son is called Hugo Eric Louis or "Grub" as a nickname.