An incredibly large bog that defies all attempts to be flushed down. Generally, manual intervention is required to break a 'K-19' or 'Widowmaker' down into flushable pieces.
I lifted the lid and was confronted by a K-19. I had to bust it up with a coat hanger to proceed.
Soviet Atomic-missile powered Submarine.
Long Live the USSR! We remember the officers and crew of the K-19...