To give importance to trifling matters.

To give importance to trifling matters.

Neither fish, flesh nor good red herring.

Neither fish, flesh nor good red herring.

As good as a play.

As good as a play.

A precious pair of brothers [i.e., rascals].

A precious pair of brothers [i.e., rascals].

Cut and come again.

Cut and come again.

A thorn in the flesh.

A thorn in the flesh.

Put himself upon his good behavior.

Put himself upon his good behavior.

Diamonds cut diamonds.

Diamonds cut diamonds.

As innocent as a new-laid egg.

As innocent as a new-laid egg.