bumpypart
nounUK /ˈbʌmpi pɑːt/
US /ˈbʌmpi pɑːrt/
A bumpypart is a spot on something that is not smooth and sticks out a little.
The bumpypart on the road made the bike bounce.
OTHER MEANINGS
2. A rough or uneven section of a surface.
Watch out for the bumpypart on the sidewalk.
3. A raised area on the skin.
He had a bumpypart on his arm after the bug bite.
4. A tricky or difficult section of a task.
The last level is the bumpypart of the game.