じゅうばこのすみをつつ
Composed of
jūbako; multi-tiered food box
corner; nook; recess; downstage right (on a noh stage)
to poke (repeatedly, lightly); to nudge; to peck at (one's food); to pick at; to peck at (someone's faults, etc.); to egg on
Examples (1 in total)
Stop your nitpicking.