What is ^_^;?
A variation on the rather typical emoticon ^_^ based of of japanese cartooning, it is used to show a cheerful embarrassment: A sweat on the side of face.
Faggot: Tee-hee! I have elmo underwear!
Person: I shoved my foot up his ass and then it got stuck...^_^;
Person2: Poop must have been all over your shoes ^_^;