noun. A bad, bad mommy.
Real citation: "I can't tell where they're going with the Ava/Adrian thing. I'm not sure I want to know. Although I do agree that Ava's in a position to recognize another bad mother in Julia's horrendo-Mom. snarkella, I expect they learn the secret handshake at those Destructive Aggressive Mommies of the Nation Unite! meetings. "
(Sandman, Sept. 17, 2004, Television Without Pity, http://forums.televisionwithoutpity.com/index.php?showtopic=2864952&st=3960)
Made-up citation: "The screaming children on the airplane made me want to stick in fork in my eye, but I'd scream too if I had a horrendo-mom like that."