Mothertrucker Share definition Flag Another form of saying the cuss word, motherfucker. Is so useful for calling little children. Kid: HAHA I HAVE MORE BOBUX THAN U!!! Me: u mothertrucker. Mothertrucker by AQUAR1US4LIF3 February 17, 2023 0 0 Get merch Get the Mothertrucker mug. Buy Now — $32.95 See more merch