An emoticon that doesn't resemble emotions of any sort, but erotica... or graphic dirty sex smut.
Here are some examples of filthy eroticons....

( o )( o ) is big breasts.

(O)(O) is big nipple breasts.

(. V .) is bra-covered breasts.

O
 |\__O
/ /   \  is doggy style.

O{<---O{< is.... um... I have no clue what that is.
by PDXJohnny99 May 1, 2013
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A sexually explicit animated icon used in chat conversations.
Pat really got me in trouble with my boss when he unleashed his new bukake eroticons in our MSN chat while I was doing a presentation to a group of investors.
by Juan "The Garrioch" Hefe June 17, 2008
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