Touch and go

Madam, I’m gone; no wonder, for you know, Lovers' encounters are but touch and go.

His condition was touch and go for a time after the accident, but they think he will recover.

I could sense it was touch and go whether I could get the lay.

As the text doth rise, I will touch and go a little in euery place, untill I come unto too much.

Whilst they were disputing the vessel touched the ground, but soon got off again. "Ay," says the captain, "he is a good pilot that can touch and go."