letmein R.E.M. tribute to Kurt Cobain off "Monster" Pounder's cry Door banger's demand Big Bad Wolf's demand to the Three Little Pigs: 3 wds Admission demand [Knock, knock] 'Open up!' Knocker's request What "knock knock" may mean "Open up!" Rapper's demand Yell during a lockout Shout during a lockout Shout accompanying knocking