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1.
( e^m*ba^riko^n) 1. n. An unintentional silly or embarrassing emoticon that appeared only after pasting something into a chat or email, when the author is unsuccessfully trying to be completely serious.

2. v. t. To accidentally trigger a silly or embarrassing emoticon when pasting something into a chat or email, while unsuccessfully trying to be completely serious.
"Oh, man, you just got embariconed! ROFL"

"There are so many embaricons in your message I can't see what it says, and, it's hilariating!"
by Jason Brittain March 26, 2010