he will give the devil his due
The phrase "he will give the devil his due" means that a person will acknowledge and rightfully credit someone, even if that person is considered evil or undesirable. It implies that there is an acknowledgment of someone's merits or accomplishments, regardless of their negative qualities.
An idiom is a phrase or expression that usually presents a figurative, non-literal meaning attached to the phrase. Does that sound fun? It can be!
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