noun, noun or participle which takes 'suru', intransitive verb
killing time; whiling away time
Refers to passing time in a leisurely or idle manner, often when one has nothing particular to do. Can be used as a noun or with する to mean 'to kill time'.
カフェでコーヒーを飲みながら消閑する。
I kill time at a café while drinking coffee.
待ち時間の消閑に本を
I read a book to while away the waiting time.