Stumblin Share definition Flag The act of being so fucked up you can't see or walk straight, therefore you stumblin. "Damn man, that shit last night got us fuckkked up!" "Yea bro, I was stumblinnnn!" Stumblin by Siyksoul December 22, 2009 0 0 Get merch Get the Stumblin mug. Buy Now — $32.95 See more merch