An atrocious emoticon; an emoticon that is atrocious.
Encompassing the standard ":-)" and ";)" but also including more graphic and detailed "emoji" style emoticons, specifically overly joyful smiling faces and radiant beaming love hearts.
However, the term is somewhat redundant because all emoticons, by definition, are atrocious.
:) ;-) :-0 :(
"I liked you until you sent me an atrocicon instead of mustering your infinite mental resources to put your emotions into words"