none of beeswax
none of (one's) beeswax
Something that is of no concern to another. This phrase is a less formal or serious version of "none of (one's) business." It's none of your beeswax why I left the party early the other night.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
none of someone's beeswax
Inf. none of someone's business. (Jocular.) It's none of your beeswax. I'm not telling. You'll never know. The answer is none of your beeswax.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.