pound of flesh

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.

become one flesh

To join together in marriage; to develop a unifying bond as a result of marrying.

exchange flesh

To engage in sexual intercourse.

flesh one's maiden sword

To experience or succeed in combat or struggle for the first time, as in the military or in politics.

flesh out

To complete; to create details from a basic outline, structure, or skeleton.

Merry-go-round

[Cockney slang]pound

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

neither fish, flesh, nor good red herring

Synonym of neither fish nor fowl (“not easily categorized; not rightly belonging or fitting well in a given group or situation; also, not having the advantages of the various options”).