(UK, idiomatic, derogatory) A middle-aged or elderly woman dressed in a style more suited to a young woman, especially if in a deliberate attempt to appear young.

(simile) Helplessly and innocently, without knowing the unpleasant consequences.

Alternative form of in two shakes

Synonym of March comes in like a lion and goes out like a lamb

(UK, informal) To talk a lot.

If one is going to commit a sin, it may as well be a major one as a minor one.

The weather in the Northern Hemisphere tends to be unpleasant at the start of March but pleasant at the end.