That Go-With' is a phrase used to describe items that are often used together. For example, a shirt and pants might be described as 'that go-with' because they are usually worn together. Similarly, a pair of shoes might be described as 'that go-with' because they are usually worn together. The phrase can also be used to describe items that are often used in combination with each other, such as a hammer and nails or a paintbrush and paint.