Mango Sucker Share definition Flag A Mango Sucker is a very ignorant person who constantly ticks me off. It is also an insult that can end an arguement with confusion. Bob: LOOK LOOK LOOK A LEAF! OH MY GOD A LEAF! Sarah: Shut up! You Mango Sucker! Bob: LO- wait what? Mango Sucker by Milkshake_loverrr March 7, 2010 Get the Mango Sucker mug.