Referring to the absolute travesty of human language that is the combination of two opposite words to mean "something that is awesome". Specifically, "badical".
Stupid Teen: I think that this perfume smells totally badical.
Anyone Sane: That's 'Dumbical'. You are humanity's evolutionary waste.
Anyone Sane: That's 'Dumbical'. You are humanity's evolutionary waste.
by trisco2001 November 30, 2007
A noun. Most basic meaning is that of being of the utmost quality of being dumb (as in stupid dumb, not can't talk dumb).
by Senz88 February 23, 2010