Questions about example sentences with, and the definition and usage of "Blooming"

A: It means that flowers are showing their petals. E.g. "The flowers are blooming".
A less common use is to add emphasis to some slightly rude phrases. E.g. "Blooming marvellous" which can be said when something annoying happens. Or "blooming idiot" to describe someone who is being very idiotic.

A: 1: having blooms unfolding :flowering ex. a blooming rose
 ablooming cherry tree

2: thriving in health, beauty, and vigor : exhibiting the freshness and beauties of youth or health

3:informal, chiefly British —used as a generalized intensive ex. a blooming fool

A: maturing / growing up/ blossoming

A: Blooming