The phrase "bashed in" can be replaced with numerous other words to express a similar meaning. For instance, one could use the word "smashed" to describe something being hit hard or crushed inwards. An alternative term that could be used is "caved in", which suggests something being flattened or collapsing. "Crushed" also works as a synonym for "bashed in", and conveys a sense of force and destruction. Another option could be "pulverized," which denotes something being reduced to small pieces. In essence, all of these terms convey a sense of intense impact and damage, making them interchangeable with "bashed in".