knobbledblock

noun
UK /ˈnɒbəld blɒk/
US /ˈnɑːbəld blɑːk/

A knobbledblock is a bumpy block that is not smooth.

The child stacked the knobbledblock on top of the smooth one.


OTHER MEANINGS

2. A building block with raised bumps on its surface.

She sorted the knobbledblocks into a separate pile.

3. A small, uneven piece of material used in crafts.

He glued a knobbledblock onto the model.

4. A clumsy or awkward person, used playfully.

Don't be a knobbledblock—watch where you step!