grunbungly Share definition Flag Used to describe something that is assembled clumsy and awkwardly in a haphazard manner. This sandwhich has unevenly cut edges and the ingredients are thrown in without any sense of order! This sandwich is so grunbungly. grunbungly by Tomeydo April 7, 2023 0 0 Get merch Get the grunbungly mug. Buy Now — $32.95 See more merch