You know, we wouldn't have this problem if Eric's parents had named him "Muscles." Then it would be MN World, which is so phonetically awkward that even the syllable-droppers among us would have to use the proper pronunciation.
Eeee Innn World.
Usually, though, I refer to it as "The Boards," and my family has no question as to which boards I'm referring to. I also say "Ennies" as in "envy."
[random thought]
Who pronounces "envy" as "E. N. vee?"
[/random thought]
In the time before time when the gods fought for dominion over the sky, earth and creepy crawlies that taste good with ketchup, a great schism divided the E-Nders from the Enders (also know as the big enders and the little enders). Brother fought brother, granny fought grandkiddies and cats fought dogs. Much blood was spilt until the pale albino (is there any other kind?)
known only as Eric of Phoney-Baloney came forth with his demonic blade Stormkitty. Eric! - destined to wear the crown of Agoraphobia upon a troubled brow. I, alone, can tell thee of his saga...