mafutero Share definition Flag In Puerto Rican slang, it is a term used to describe someone who smokes pot. From the verb fuma (smokes) --> ma-fu. Ese tipo es bien mafutero, le sale verde hasta por los oidos. mafutero by 2mai-en4 August 9, 2016 0 0 Get merch Get the mafutero mug. Buy Now — $32.95 See more merch