verb (used with object), red-flagged, red-flagging.
to mark or draw attention to for a particular purpose: The department has red-flagged the most urgent repair work to be done.
to provoke the attention of; alert; arouse: The animal's refusal to eat red-flagged the keeper that something was wrong.
of or pertaining to a red flag.
intended or serving to emphasize, warn, incite, or provoke.