Momspeak Share definition Flag When your Mom repeats back something she heard and gets it all wrong. Again, Jack corrected her, "No Mom, Twitter allows 40 characters, not 400!" then he glanced at Zoe and said, "Momspeak!" as they laughed under their breath. Momspeak by Jozoja November 28, 2015 0 0 Get merch Get the Momspeak mug. Buy Now — $32.95 See more merch