ream out

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ream someone out

Sl. to scold someone severely. The teacher really reamed him out. The coach reamed out the whole team.
See also: out, ream

ream something out

to widen or clean an interior cavity or channel by scraping, grinding, or drilling. Ream the opening out so the flow will be faster. We had to ream out the pipes so the fuel would flow to the engine.
See also: out, ream