It happens when I am tired. I am very tired. Cognitive language mush, the sloth of trying to pass off some perpendicular word arrangement that bears only a homeopathic resemblance to the culturally accepted label for an object.
For example, “the thread thing from the stuff,” which, although perfectly clear to no one but me, means the plastic string from the weed trimmer.
Some people fear mushbrain, I find it amusing. I do not like the fatigue, stress, hormones, or lack of them, that brings it on.
And it is hard to know which is more humorous, the ridiculous description, or the fact that my offspring, without missing a beat, retrieved the string trimmer spool with no further question.
Shouldn't...but Do 
Have I ever told you how much I like the way you write? 😉
🙂
Those are some smart kids. I know that language mush well..too well. The thread thing from the stuff, indeed.