- DAMUP
- Create an obstruction
- Stanch, as a river
- Obstruct
- Work like a beaver
- Block, as a stream
- Cause to flood, maybe
- Clog
- Impound
- Cause a blockage in
- Block
- Stop from flowing
- Keep from overflowing
- Block, as a river
- Restrict the flow of
- Keep from flowing
- Keep from flowing, as a stream
- Block, beaver-style
- Block off, as water flow
- Stop the flow of
- Obstruct, as a river
- Obstruct, as a stream
- Obstruct the flow of
- Keep back.
- Hold back.
- Halt the flow of
- Plug
- Stop, as a stream
- Completely block
- Plug, say
- Prevent from running
- Block the flow of
- Block, in a way
- Obstruct a river
- Block, like a river
- Clog, in a way
