蛞蝓に塩
also: ナメクジにしお
Meanings
1
crestfallen; dejected; like a slug sprinkled with salt
Idiomatic expression describing someone who looks utterly deflated, wilted, or discouraged, as if they have shriveled up like a slug when salt is put on it.
After being scolded by his boss, he looked as crestfallen as a slug sprinkled with salt.