noun
irregularity; unevenness; bumpiness
Colloquial noun describing a surface or shape that is not flat or smooth, with protruding and recessed parts. Often used for roads, walls, or physical objects.
この道はでっこみひっこみが多くて歩きにくい。
This road is very uneven and hard to walk on.
壁のでっこみひっこみをパテで埋める。
Fill the irregularities in the wall with putty.