This word means whatever the user of the word wants it to mean. The type of nonsensical word a middle-aged Mordecai uses because of his nostalgic crush on old men from the south. Additionally he uses it to confuse others when he himself is confused and doesn't want to be discovered.
A nonsensical word that literally means whatever an old farmer decides. These days you usually hear it used by somebody who's neither old, or a farmer, but rather a Mordecai who romanticizes the idea of being an old farmer.
We got a quare storm coming up.
My uncle has a hip that'll go quare from time to time..
It'll be quare in the morning till the sun comes up.