miss - a single female, not married, not wanted
bitter - sour, ugly, see evil
missbitter - an irc user that likes to finger her anal live on webcam on irc
for an example message missbiter on irc
1)noun: an asian girl in melbourne who enjoys fingering her anus live on webcams, much to the delight of irc users.
2) verb: the act of fingering your anus with 2 fingers
VERB: i miss bitter'd the bitch!