American & Australian, informal an impolite way of saying that you do not want someone to know about your private life.
'So where the heck have you been?' 'None of your 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.
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.