emtarkanderundersgunderson means in slang: A person with an unusual and long name. Abbreviated as Em. (in Slang Dictionary, added by Sulphorous)

What else does emtarkanderundersgunderson mean?

Possible elongation (em) of the name Strong Bad discovered this while checking his email. (in Slang Dictionary, added by Lexi Lara)

It overlooks “Embrodak”, “Emerson” and other great names. These names are also hilarious, guys. (in Slang Dictionary, added by Mayra Valentine)