| The strata of society are as immovable as the strata of the rock-ribbed hills. |
| My parents were not politically active, although they considered themselves rock-ribbed Reagan Republicans. |
| In other words, the spine is a bodily structure as old as the rock-ribbed hills. |
| I guessed that he probably never fit in too well with North Dakota's rock-ribbed mainstream. |
| Keep in mind, the 22nd District is not his old rock-ribbed Republican seat. |
| Although a flaming liberal during the war, he became a rock-ribbed far-right conservative immediately afterward. |
