| North Carolina river |
| Peruvian river |
| Narrow inlet of a river |
| A German river |
| Animal's gaping mouth |
| Aid for a lost driver, for short |
| River in Northern California |
| Creatively-censored 4/28/10 New York Post headline about the foul-mouthed Senate/Wall Street hearings |
| Chief river of British Columbia |
| Munich’s river. |
| Narrow river inlet |
| Spanish river |
| Luxor river |
| River that runs near the Leaning Tower of Pisa |
| A river and a cartoonist |
| Like St. Nick's "little mouth," in "The Night Before Christmas |
| Alaskan river |
| Iranian river |
| River in Venezuela |
| ___ said a mouthful! |
| River running through the Grand Canyon |
| Berne's river |
| 2018 Best Supporting Actor Oscar nominee Driver |
| River in Ulster |
| Scottish river known for its salmon fishing |
| French river with a famously picturesque valley |
| River spanner |
| Smoker's mouthpiece |
| Belgian river deliberately flooded during W.W. I |
| ___ Darya, U.S.S.R. river |