an acronym for "my internet shut off," used in conversations via internet when facebook chat is faulty and your messages don't go through, or when your instant messenger quits abruptly
Spencer:guess what!
Rachel: what?
Spencer is offline.
Spencer is online.
Rachel: wtf
Spencer: shit, sorry. miso!
Rachel: what?
Spencer is offline.
Spencer is online.
Rachel: wtf
Spencer: shit, sorry. miso!
by <3insf December 20, 2009