Merf! has quickly become my catch all phrase. It originated from the sound Boy Cat made when landing after jumping off something high. Like a cat’s version of Oof! But it sounds like Merf! I find it often describes how I am feeling, sort of like bummer dude.
Just please don’t look it up the Urban Dictionary. I would never do that to one of my cats! It’s mErf not mUrf anyways.