L.O.W.D. or LOWD
A person you love who forgets everything and calls you a profane name every time they see you.
My L. O. W. D. just yelled 'You're a f***ing idiot' and then forgot who I was.
I tried to tell my L. O. W. D. about my dog, but they thought I was talking about their ex.
My L. O. W. D. asked for pizza and then said I was a 'f***ing disgrace' when I brought it.