Idiomatic expressions

[reneflor]

Please help me know the meaning of the following idiomatic expressions:

1. poking your nose into
2. fits the bill
3.hang your head in shame

[Anglika]

Please help me know the meaning of the following idiomatic expressions:

1. poking your nose into
2. fits the bill
3.hang your head in shame

Welcome to the forums.

If you poke your nose into someone's business, you are being over-curious and officious.

Something that fits the bill is something that matches or which is correct.

If you do something wrong, you hang your head in shame - you are so ashamed that you look at the ground.