VIDEO : Dax Shepard Dishes On His And Kristen Bell's Daughter Lincoln Screaming The 'F-word'

Every day Dax Shepard and wife Kristen Bell are learning something new about their daughters, Lincoln Shepard and Delta Shepard. Unfortunately, it's not always the best stuff. While appearing on The Ellen DeGeneres Show Tuesday, Shepard opens up about accidentally teaching his 3-year-old daughter Lincoln to say the "f-word". It happened accidentally, of course, after the CHiPs star nearly broke his nose on his daughter's bookshelf. "I let a couple of mother--kers rip," Dax confesses.