The initial idioms of the letter K

kee	ka
ka me, ka thee	the whole kaboodle
Ka-ching!	kack
kafooster	kak
kaka	kangaroo
kangaroo court	Katie
Katie, bar the door!	Katie bar the door
kayo	keel over
keel	keen
keen about, be	keen on
keen on doing	keep
keep (someone) in the loop	keep (something) close to (one's) chest
keep (something) on the down low	keep a
keep a civil tongue	keep a civil tongue in head
keep a civil tongue in one's head	keep a tight rein on