pound sand

a pound to a penny

Very likely; almost certainly.

an ounce of prevention is better than a pound of cure

Precaution and prevention of an undesirable thing is preferable to dealing with its potential consequences.

build on sand

To put something in an unstable position by failing to give it a secure foundation.

bury one's head in the sand

To deliberately ignore the reality of a situation; to pretend a problem does not exist.

line in the sand

A defining moment; a cutoff point.

Merry-go-round

[Cockney slang]pound

In the sterling sense. Referring to the saying that "money was made round to go round".

penny wise and pound foolish

Prudent and thrifty with small amounts of money, but wasteful with large amounts.

pound a beat

Of a police officer, to walk a regular route.