What does ウン歳 mean?

Question

I recently heard a woman describe herself as a 四十｛よんじゅう｝ウン歳｛さい｝. My guess is that it is the Japanese equivalent of "40-something", but I am not sure.

Answer 1

ウン in this context means 'something', so it would be forty-something.

ウン is used as a filler for unspecific mumbling on other occasions also - like here in "unnunkannun".

Also see.