lid
n.— «And they give out a “Lid of the Month” award—part honor, part joke, it is a wooden commode seat, which when lifted reveals a mirror and the engraved call signs of past recipients. “Lid” is a term for a poor radio operator. “Lid-like” behavior is anything from forgetting to turn off music when transmitting or accidentally cursing on-air.» —“Annual salute honors hams” by Peggy Lim News & Observer (Raleigh, North Carolina) Nov. 16, 2006. (source: Double-Tongued Dictionary)