Definitions

1. verb

to heap or pile something up excessively; to overcrowd or overfill something

“The workers overheaped the new furniture in the storage room, making it hard to move around.”

2. noun

an excessive pile or heap of something

“The overheap of trash on the street corner was a problem for the local authorities.”

3. verb (transitive)

to heap or pile something up over or on something else

“The construction workers overheaped the dirt on top of the new foundation.”