Miserable Cow Share definition Flag A person--usually an overweight woman--who is always complaining about something trivial. Man, my boss is such a miserable cow. If she won the mega-millions jackpot, she'd whine about having to go to the bank. Miserable Cow by mulligan69 July 28, 2014 0 0 Get merch Get the Miserable Cow mug. Buy Now — $32.95 See more merch