When you need to cover up a mistake or make amends with someone, you might use the phrase "smoothed over." However, there are other ways to express this action. One alternative is to say that you "made peace" with the person or situation. You might also describe the process as "reconciling" or "resolving" any issues. Another option is to use the term "patched up," which implies fixing something that was broken. You could also say that you "smoothed things out" or "ironed out the wrinkles," which suggests working out the kinks in a relationship or situation.