its ColonThree, a cute/cat face, which to some means 'teabagging'
colonthree is quite the superior emoticion, i even bought colonthree.com because i'm a little whoer, although the site sucks shit right now.
it pleases me greatly to see stamper using :3 all the time ^_^
i coulda sworn i made a :3 face like jercurpac's for a thread, but now i can't seem to find it :0 hmmm... odd...
blushyface is almost like, newgrounds new :3, even though stamper sure has been whoring the :3, even jesus got a colonthree yesterday! :D