O Series Flashcards
Off the cuff
Spontaneous.
Off and on
Intermittently, from time to time
Off form
Not as capable as usual.
Off your hands
To relieve someone of the
burden or bother of someone or
something.
On a wing and a
prayer
Getting by in a difficult situation.
On the air
Broadcasting (a radio or
television program).
On the alert
To be looking out for a problem.
On the cards
Likely to happen.
On the fiddle
Engaged in a fraud.
On the grapevine
Means of informal transmission
of information.
On the horns of
dilemma
Having to decide between
equally unpleasant courses of
action.
On the level
Honest; correct
On the nose
Exactly right
On the spur of
the moment
Said of acting suddenly or
spontaneously
On the treadmill
To be working hard with no end
in sight.
On the warpath
Angry and intent on a
confrontation
Once in a blue
moon
Said of a very rare occurrence.
One fell swoop
All at the same time
Open one’s eyes
See what is happening around
you; be aware.
Out of sorts
Not in one’s usual health or
state of mind.
Out of the
question
Not allowed; not permitted.
Out of the woods
Past a critical phase.
Over and above
More than something; in
addition to something.
Owing to
Because of something.
