Take the rap (for someone or something) informal slang
The late 18th-century use of rap to mean ‘criticism’ or ‘rebuke’ was extended in early 20th-century American English to include ‘a criminal charge’ and ‘a prison sentence’.
To be penalized or blamed for something, especially when it is not your fault.
His mom took the rap for the broken glass, even though it was her son who threw the glass onto the floor.
His mom is always taking the rap for his wrongdoings. If she keeps doing that, he will become an irresponsible person.
Listen, John, you're mature now, so you must take responsibility for your mistakes. No one here is gonna take the rap for you.
The verb "take" must be conjugated according to its tense.
This phrase was formed based on the meaning of the noun "rap".
Confusion made worse than before.
There was heavy traffic on the way to work this morning. Confusion worse confounded when some drivers were arguing with each other right in the middle of the street.