XO XO looks like two emoticons getting bummed ontop of each other.

( Donkey Gums @mattcomedy, Fri 19 Jun 2009, 11:01, archived)

Hah!
I see it now!

*fap*
(Frozen_Banana Shaved against the grain; thoroughly unrewarding., Fri 19 Jun 2009, 11:06, archived)

OGC

( manolith hooray for me, Fri 19 Jun 2009, 11:08, archived)