The initial idioms of the letter K

knock someone's block off	knock the socks off
knock something back	knock something down
knock something into a cocked hat	knock something off
knock something out	out of place
knock something together	knock spots off
knock the bejeebers out of	knock the bottom out
knock the bottom out of	knock the daylights out of
knock the dew off the lily	knock the habit
knock the hell out of	knock the living daylights out of
knock the props out from under	knock the stuffing out of
knock the tar out of (someone)	knock the wind out of sails
knock them/'em dead	knock through
knock to	knock together
knock up	knock wood
knock yourself out	knock-down, drag-out fight