To take the blame is to accept fault, whether or not it was yours. Take the blame for it, somebody has to take the blame.
Doing it when the fault was not yours is either loyalty or cowardice, depending on who arranged it. The phrase belongs to organisations more than to friendships.
1phrasetake the blameTo accept fault, whether or not it was yours.
“The manager agreed to take the blame in public and settle it privately.”
take the blame is a phrase.
Practised in Idioms