Stifler Speak Share definition Flag when u say a swear word combined with an innocent word...like how stifler did in american pie *someone* "whats up shitlips"....*you* "dude u use stifler speak too much" Stifler Speak by Sean Jaskiewicz January 2, 2009 0 0 Get merch Get the Stifler Speak mug. Buy Now — $32.95 See more merch