godan verb (-ku)
Colloquial contraction of 差し引く, used in casual speech for deducting or subtracting an amount, often from money or a total.
See also: 差し引く
給料から税金をさっぴく。
They deduct taxes from my salary.
合計から割引分をさっぴいて計算した。
I calculated it by subtracting the discount from the total.