Bonus mom noun phrase informal
Step-mother.
Jane could not get on with her bonus mom, so she was not welcome in her father's house.
The two eventually started dating and married in 1980. Taylor became bonus mom to Jack 's four children from a previous marriage.
His father died leaving his young children in the care of a cruel bonus mom.
Used to refer to a biological mother
One's father or mother
in any way at all
I will not accept it in any way, shape or form.