That's abuse. (Clearly mom in angry and raging at kid, not that he doesn't deserve it, but that won't install discipline)
My parents never swore or used foul language (well ok maybe a little--but not when disciplining). They just whooped your ass and you KNEW you were gonna get your ass whooped so you didn't do it.
And not to harsh the buzz in here but a unacceptable humor story from my mother for you on anti-bullying.
My mom punched a kid in school who was teasing her, broke his nose. Called to Superintendent office. Her father, said "Good, I told her to"
This ends my ted talk on bullying.