The countdown is over, and the long-awaited third season of Blue Lights is finally airing. To save you pausing and Googling, we've put together a guide to the lingo you might find in Blue Lights, especially one of the most popular ones - the meaning behind the term 'peeler' when referring to a police officer. Why are police called peelers in Blue Lights? in Blue Lights and statements of "oh, you're a peeler now?" More Blue Lights lingoPAPA Check : An ID check under the Police Affairs & Powers Act to check or confirm someone's identity.