erc-ignored-user-p

erc-ignored-user-p is a compiled Lisp function in `erc.el'.

(erc-ignored-user-p SPEC)

Return non-nil if SPEC matches something in `erc-ignore-list'.

Takes a full SPEC of a user in the form "nick!login@host", and
matches against all the regexp's in `erc-ignore-list'. If any
match, returns that regexp.