凸凹 でこぼこ とつおう だくぼく unevenness; roughness; ruggedness; bumpiness n adj-no adj-na vs inequality; imbalance; unevenness; difference n adj-no adj-na Intermediate ➥
凸る とつる to charge; to rush; to assault; to attack v5r vi sl to flood a company, organization etc. with phone complaints (usu. loosely organized on anonymous online message boards) v5r vi sl Advanced ➥
電凸 でんとつ flooding a company, organization etc. with phone complaints (usu. loosely organized on anonymous online message boards) n vs sl Advanced ➥