noun
worker ant
Refers to a sterile female ant that does the work of the colony, such as foraging and nest maintenance.
働きアリは巣のために餌を集める。
Worker ants gather food for the nest.
Colloquial metaphor comparing a hardworking person to a worker ant; often used in casual conversation.
彼は本当に働きアリだね。毎日遅くまで仕事をしている。
He's a real worker ant, isn't he? He works late every day.