Interp Share definition Flag The Competitive acting section of Speech and Debate. It's neither speech nor debate, but it doesn't matter because it's a damn good time. Who the fuck invited Interp to the party?" "I don't know, but he brought cocaine. BOOYAH! Interp by Fivefjaklsd;jfa November 20, 2010 0 0 Get merch Get the Interp mug. Buy Now — $32.95 See more merch