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The act of stealing an emoticon you don't have from a person for the sure enjoyment of using it as your own.

When someone uses an emoticon that you like and do not have you can use this word to announce to your fellow IM user that you are stealing their emoticon so you can share it with other people.
Them: (cool emoticon)
You: oo emotisteal
Them: nice :P
You: :)
by Duckie69 August 29, 2009