Nothing, zip, zero. Jolly term to describe the abscence of an item sought.

Suggested origin is from the Cockney rhyming slang 'Sausage and mash' used to mean 'cash', or money. Hence 'not a sausage' to mean 'no cash' or 'nothing'.

to tell someone to calm down and relax.

Colloquialism: "nothing at all".

Comes from English slang; exact origin is unknown.

This phrase means that the particular thing that you are looking for is not immediate sight of you and can see anyone or thing of that group.