あしのうらのこめつぶ

足の裏の米粒

表記・読み：あしのうらのこめつぶ

1. 1

   pointless (academic) degree; meaningless qualification; useless license; a grain of rice on the sole of the foot (must be removed, but not enough for a meal)

   expressions (phrases, clauses, etc.)名詞idiomatic expression