The first sight of her angelic face had all but knocked the legs out from under him.

He might have succeeded, but one of the two men knocked his feet out from under him.

No husband, an absent friend; all the blocks knocked out from under me at once?

The next, across the back of both knees, knocked his legs out from under him.

Soon he caught me and knocked my legs out from under me.

Someone knocks him out from behind, but when he wakes up again the bed has been made.

The woman came up behind a soldier standing in their way and knocked his feet out from behind.

The poor kid's had almost every emotional prop knocked out from under him.

He jerked upright, his thoughts knocked out from under him.

Kisten went down, his foot knocked out from under him.