Letters that make kookie
o, e, k, i are letters that make 'kookie'
kookier is a word created by adding a letter to 'kookie'
1 possible definitions for 'kookie'
Under this definition, kookie is an adjective and has the following properties:
buggy, dotty, haywire, daft, nutty, balmy, barmy, bats, batty, bonkers, cracked, crackers, fruity, kooky, loco, loony, loopy, nuts, round the bend, around the bend, wacky, whacky have the same meaning as 'kookie'
odd fellow, queer bird, queer duck, odd man out, addle-head, addlehead, birdbrain, loon, kook, craziness, flakiness, odd fish, daftness are derivatives of 'kookie'.
insane is similar to kookie.