six going on twenty meaning?

[shinem]

What is the meaning of six going on twenty about a little girl?

[Ouisch]

It means that although she is a child, she either acts or dresses like someone much older.

[shinem]

Thank you very much :)

[BobK]

Ouisch has given the meaning. The idiom (well, not really an idiom as it doesn't always us those numbers - it's more of a conventional piece of wordplay) is based on the traditional use of 'going on', in expressions such as 'six going on seven' [=reaching the end of his/her seventh year/well over six - in fact nearly seven].

b