When a person suddenly becomes extremely grumpy, and looks/feels/acts like a wet cat (hissing, pouting, general spitefulness). This is typically brought upon by undesired moisture, especially humidity or sweat.
My wife's wet cat syndrome tends to flare up in extremely hot weather. She can't handle sweat or humidity in public places. She becomes a miserable grump.
by twill July 20, 2015
by Twill September 17, 2008