A member of the British Royal Military Police. Probably the world's most proffesional and well respected police force.
There was severe rioting in the city last night until they sent the Redcaps in.
Traditionally, the most evil of all goblins whose cap is dyed red with the blood of his human victims. In recent times, this is a term to define the fugliest of all women. She will take domain in your home and not let you hang out with your friends.
Chris: "Hey Ryan, wanna go to the bar and watch the game?"
Ryan: "I can't man, Kara wants me to sit in my bedroom and hibernate all weekend."
Chris: "Damn dude, you gotta get rid of the redcap... so juicy."