Listen to the sound clip Formula513 from Samuel MF Jackson Soundboard: Formula513 Formula513 This sound is from Samuel MF Jackson Soundboard A Samuel L Jackson MFing Soundboard. There are 19 of Samuel L Jacksons most memorable MF's. Spanning a large portion of his filmography. Each icon is representative of the film he is in when he says a certain MF. Happy mother fucking. Go to the full soundboardwith more sound clips Search