A state of mental distress usually
experienced by your partner, which they have no intention of articulating to you, or explaining any reasons behind it, but which they are pissed-off that
you are not doing anything about, and will make sure that the nice evening that you had planned becomes a living hell.
Acronym:Quite Upset About Lots Of Different Stuff
NB: Do NOT, under any
circumstances, try to explain to a sufferer that they have this condition.