To work very hard at something for little or no return. In other words, wasting time on work which will not yield reasonable value.
apple polishing|apple|polishing
n., slang Trying to win someone's good-will by small acts currying favor; the behavior of an apple polisher. When John I brought his teacher flowers, everyone thought he was apple polishing.
An polishin idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with polishin, allowing users to choose the best word for their specific context.
Dictionary of similar words, Different wording, Synonyms, Idioms for Idiom, Proverb polishin