Top definition. Jul 21 Word of the Day. Middle aged woman, typically blonde, makes solutions to others' problems an inconvenience to her although she isn't even remotely affected. Karen sues the local city council after they installed a new STOP sign that hides the sun from her window for two minutes a day. The sign was installed after a school boy on his bicycle was hit by a speeding driver and died. Karen refuses to wear a face mask for her 5 minute trip to the supermarket during a pandemic.