godan verb (-ru)
be overflowing with; be awash with; be full of
Describes a place or container so full that things seem to spill over or swarm; often used for crowds, objects, or abstract things like energy.
会場は人で溢れかえっていた。
The venue was overflowing with people.
机の上に書類が溢れかえっている。
The desk is awash with documents.