Pronounced "greater than-colon-oh". Is not only an emoticon, but an entire language. The >:o language is known for its liberal use of suffixes, often with an apostrophe('), and frequent refernce to internet memes. If used incorrectly among the more refined speakers of >:o it may illicit liberal amounts of flames and the emoticon ">:o", along with cursing. Often uses the @ character as a grammar construct.
"I know the speakery of >:o is common in these parts."
Poseur: Guys I speak'd the >:o in you're mom!
Legit1: O RLY @ >:o use by one as yourself.
Legit2: Hahah. YOU FAIL @ >:o'ery.
Poseur: Don't you guys think the people on /b/ are idiots?
Legit1: Rongur, /b/tards kick ass.
Poseur: O RLY?
Legit1: O YS, amirite?
Legit2: Riteur, Legit1, and I lol'd @ how made of fail and stupid you are, Poseur.