The appropriate response is "Her perimeter established". A flat out expression is a modifier or a modifier and a couple of different words, that appends to a sentence or a thing, with no conjunction. A flat out expression can't contain a limited verb. We typically clarify total expressions by saying that they alter whole sentences, as opposed to single word.
I think it mean to ofc leave things bad or unresolved. It makes you feel uncertain. Like leaving things on a good note means to leave things just right
