From Scotland Yard to the farmyard, there's a certain whiff

1. rank: a position within a fixed heirarchy. For example, in the Metropolitan Police.
2. rank: having a foul smell. For example, in the Metropolitan Police.

Hello! Hello! Hello! said the MP to the MP to the MP

The Member of Parliament to the Murdoch Press to the Metropolitan Police.
The permutations are endless.
Three in a bed is never healthy. You don't know where to turn.