Couldn't you think up a good lie or stay quiet so I could?
He needed a good lie, but nothing was coming to him.
The key to a good lie is not to volunteer too much.
I wasn't going to waste his time or mine by coming up with a really good lie.
He can also create a good lie on the spot.
"I don't suppose we have something more than a good lie to fall back on."
And shouldn't a good lie have a certain amount of truth mixed up in it?
Later, when I asked what it was all about, he had to come up with a good lie.
It is understood that adults know the difference between a good lie and a bad one.
Not a good lie, but he must put it on the green.