sitting tight

Bob, sitting tight on what he knew was the one and only plan to accomplish his purpose, began to despair of his chance.

"I'm sitting tight until your gardener is kind enough to bring me a ladder," he responded, imperturbably.

These lands had been something of a mystery, for their owners were evidently sitting tight and biding their time.

Hasn't it been hard work, though, just sitting tight and not hearing from her!

The two men seemed to be sitting tight under their furs and masks.