look up any word, like dirty sanchez:
 
1.
an apocolyptic , end of the world catastrophic reaction by mom when she discovers you have done something innapropriate/against her wishes.

Characterized by screaming to the top of her lungs, can occasionally become physically punishing. A REALLY pissed off mom.
It was momageddon at my house last night when she found out I skipped school to go to the beach.
by nuttin2say August 31, 2011