Mofubushi Share definition Flag A shortening of the phrase "mother-fucking bullshit". It's pronounced as such: moe-foo-BOO-she This traffic is mofubushi! Your attitude is mofubushi! Mofubushi by db romanowski July 8, 2010 0 0 Get merch Get the Mofubushi mug. Buy Now — $32.95 See more merch