http://en.wikipedia.org/wiki/O_RLY
The original O RLY owl.
The history of the O RLY internet phenomenon is recorded on
wikipaedia..so before anyone asks if it's true, YA RLY.It's
true.
"Internet meme, typically presented as an image macro of a snowy
owl with the words "O RLY?" ("Oh, really?") superimposed. Other
common images include a different owl with "YA RLY" ("Yeah,
really"). The usual conversation flow, including the meme, starts
with O RLY?, followed by YA RLY!, then sometimes ending with the NO
WAI! owl. An additional exchange of SRSLY? SRSLY! (seriously) or YA
WAI! (yeah way) is sometimes incorporated. R U SR (Are you sure)
might also be used, but more rarely."
