If you flush dirt or a harmful substance out of a place, you get rid of it by using a large amount of liquid. That won't flush all the sewage out, but it should unclog some stinking drains. [V n with out]
Definition of flush verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
to flood or spray thoroughly with water:[~ (+ out) + object] to flush a pipe clean; flushed out the stables. to (cause to) be washed with a sudden rush of water: [no object] the sound of a toilet flushing. [~ + object] flushed the toilet.
verb (used with object) to drive (a game bird or other animal) from cover and cause to fly off or spring forth suddenly; rouse: to flush a bear from a thicket. to flush a woodcock; to flush a bear from a thicket. to force (a person) out of hiding. The troops have flushed the rebels from their bases.
If you flush something down the toilet you get rid of it by putting it in the toilet bowl and flushing the toilet. Police suspect that the drugs were flushed down the toilet.
1. So as to be even, in one plane, or aligned with a margin. 2. Squarely or solidly: The ball hit him flush on the face.