shootin shit Share definition Flag To bullshit, or run your mouth. You eventually look like an idiot if you do it. Frank said that he had a fat million, we believed that until we saw his 1 bedroom house. He's shootin shit. shootin shit by SadPussyEmoCryCry May 1, 2010 0 0 Get merch Get the shootin shit mug. Buy Now — $32.95 See more merch