dumbasstivity 

Only niggas that are so fuckin stupid are the ones you use this word on like niggas named Jordan cuz that mf really stupid any mf wit that name retarded an has dumbasstivity

That nigga over there Jordan has dumbasstivity

dumbasstivity by Sum coon May 15, 2017

dumbassicity 

–noun, plural -ties. duhm-ās-is-i-tee
the quality, relative degree, or specific degree of being a dumbass.

Everything that that fool talks about has so much dumbassicity.

dumbassicity by Burbank Stephens March 30, 2009