Abrumnal Share definition Flag The Abrumnal is the part of a letter that is a straight horizontal for example in the letter “A” there is one. Oh wow have you seen Greg he keeps missing out the Abrumnals in his letters! Abrumnal by Chemicalkenz January 30, 2020 0 0 Get merch Get the Abrumnal mug. Buy Now — $32.95 See more merch