Muchuchu Share definition Flag A Muchuchu is a very Intimidating penis. A Muchuchu penis doesn't mean a large or small penis, it just means your penis is very intimidating. "I saw Kevins penis in the showers today, It was such a Muchuchu." Muchuchu by XVALLORX November 2, 2020 0 0 Get merch Get the Muchuchu mug. Buy Now — $32.95 See more merch