It mean that you are saying Happy Birthday to someone earlier that their birthday
Happy birthday
'A happy birthday',Lá breithe sona dhuit (A happy birthday to you) in Irish Gaelic.
you say Happy birthday ( if you mean sing and dont want to pay money than for he/ she is a jolly good fellow or happy b-day )
happy birthday to poo
happy birthday sweetheart
happy belated birthday
Give her some sort of indication that it was your birthday,such as,get a friend to ask her "what did you get for his/her birthday?" then she might remember that it was your birthday and maybe apologise.
Happy Birthday
happy birthday
68, but turning 69 in two days! Happy early birthday!
Not at all.
A happy birthday is when you go out and have fun