Stoop so low (as to do something) phrase
To drop your moral standards to very low point where you are willing to do something despicable, dishonest, or bad.
I couldn't believe he stooped so low as to beat a disabled person.
John is criticised for stooping so low as to trick money out of an elderly.
The verb "stoop" must be conjugated according to its tense.
The origin of this phrase is not clear.