Ms. Moogoo Share definition Flag A name given to a person who has no idea what the lyrics are to a specific song that they are singing at the time. "booty booty booty booty rockin' in a well" "Wow, your such a Ms. Moogoo, learn the lyrics." Ms. Moogoo by Jeff567 January 10, 2010 0 0 Get merch Get the Ms. Moogoo mug. Buy Now — $32.95 See more merch