Hill Wimp
Fair weathered,fair minded but easily persuaded.
I am awake due to a flashing Xmas tree and it's not mine

I certainly grew up with it, it would seem unremarkable.... Is it not common?
I know some expressions aren't widespread but just didn't realise that wasn't a common one!, and my granny was a proper Christmas baby, born on the actual day!I'm here.
I grew up with that saying as well...
Oh and belated happy birthday. Another Christmas babe?
I have just made a chicken