wipe out
wipe out {v.}
1. To remove or erase by wiping or rubbing.
The teacher wiped out with an eraser what she had written on the board.
Compare: RUB OUT.
2. {informal}
To remove, kill, or destroy completely.
The earthquake wiped out the town.
Doctors are searching for a cure that will wipe out cancer.
The Indians wiped out the soldiers who were sent to stop their attacks.
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Source: A Dictionary of American Idioms