to heap or gather in clumps" (transitive), 1824, from clump (n.). Related: Clumped; clumping. Intransitive sense "to form a clump or clumps" is recorded from 1896.
We need to keep the guards in a clumpiness fashion so we can stay safe in this area.
A Guy Who Got Deleted For Making A Minecraft Sheep Get Pwned By His Friend
That Guy Beasty_Dev Has A Large Dingle.
That Beasty_Dev Is kool for skool.