Here are some examples of how it can be used:
* "The two politicians were constantly butting heads over the new budget."
* "My parents are always butting heads about whose turn it is to do the dishes."
* "I tried to explain my point of view, but we just kept butting heads."
Essentially, "butting heads" implies a situation where two people or groups have opposing views and are unable to find common ground, leading to frustration and potential conflict.