Variable: erc-bad-nick
erc-bad-nick is a buffer-local variable defined in erc.el.gz.
Documentation
Non-nil indicates that we got a nick in use error while connecting.
Source Code
;; Defined in /usr/src/emacs/lisp/erc/erc.el.gz
(defvar-local erc-bad-nick nil
"Non-nil indicates that we got a `nick in use' error while connecting.")