whack off

基本解释

But his tail had been caught in the ice which had frozen over during the night and as he pulled, it broke off : Whack!
但是它的尾巴已经被牢牢地冻在冰里了。

The new method should allow Toyota to whack at least 25% off the cost of building trucks, says David Cole, president of the Center for Automotive Research at the Altarum Institute in Ann Arbor, Michigan.
FORBES: Magazine Article
These time-outs were often triggered by a crisis—anything from a painful loss to a life threatening illness—though a few deliberately chose to step off the grid when life got out of whack.
FORBES: Is It Time For A Time-Out?
Tipped off by a newly hired comptroller that certain accounts were out of whack, he hired a forensic accounting firm to do some digging.
FORBES: Can You Believe Those Revenues?