His stomach felt like it had tied itself into a knot.

Every muscle in my body tied itself into a knot.

Already, the international alliances are tying American technology policy into knots.

Her belly felt as if it had tied itself into knots.

I do not love a medicine that causes men to tie themselves into knots and then turns them green.

Beyond was a sight that tied my memory and feelings into a knot.

The men tied his stomach into knots; the women made him want to sit down and cry.

But even more interesting is the flexibility of the material, which can be tied into tiny knots.

McCoy's stomach began to tie itself into a little knot.