SMFDALI Share definition Flag (pronounced smuff-darley) Short for Suck My Fucking Dick And Like It. An extension of the abbreviation SMFD. Boy: Hey bitch you wanna ride? Girl: With you? No! Boy: Hey bitch you're gonna SMFDALI. SMFDALI by PozzaJ May 25, 2006 0 0 Get merch Get the SMFDALI mug. Buy Now — $32.95 See more merch