Parental unit noun phrase
This phrase is often used in the plural to indicate both parents.
One's father or mother
I don't know which parental unit is driving me.
This form must be signed by the parent units.
Which parental unit will go to the parent meeting for you?
To say, or believe something or someone that seems completely crazy, delusional, or stupid
You spent 1000$ on a new pair of shoes! It is insanely crazy. You need your head examined.