Compounds of らかん

• すっからかん
  (adj-na,n) penniless
  broke
  flat out (of)
• あっけらかんと
  (adv) quite indifferent
  looking blank
  looking as though one has nothing at all to do with what is going on
• うんたらかんたら
  (n) something-something (phrase used in place of meaningful words in a sentence)
• なんたらかんたら
  (exp) something or other (often used in place of a word or phrase that has been forgotten)
• うんちゃらかんちゃら
  (exp) something-something ('fill in the blank' type phrase)