口くち寂さびしい

i-adjective

craving something to eat or put in one's mouth; feeling of oral emptiness

Describes the restless feeling of wanting to chew, smoke, or taste something, not necessarily from hunger. Often used when one is bored, stressed, or trying to quit smoking.

• 禁きん煙えん中ちゅうで口くち寂さびしいから、ガムを噛かんでいる。

  I'm trying to quit smoking and my mouth feels lonely, so I'm chewing gum.

• 暇ひまになると口くち寂さびしくて、ついお菓か子しを食たべてしまう。

  When I have nothing to do, I get an oral craving and end up eating snacks.