This is the shocking moment a grandmother pulled out a knife on her young grandson and threatened to cut him because she claims he was being rude in a car.

A video of the incident shared by World Star Hip Hop on YouTube shows the grandma in the front passenger seat of a car as she yells at her grandson, who appears to be no older than the age 11, in the back seat.

'Shut the f*** up,' she yells at him several times as he can be heard laughing.

She then bends down and reaches in her handbag as he continues to laugh in the backseat.

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This is the shocking moment a grandmother pulled out a knife on her young grandson and threatened to cut him because she claims he was being rude. A video of the incident shows the grandma in the front passenger seat as the boy is in the backseat

'Shut the f*** up,' she yells at him several times as he can be heard laughing. She then pulls a knife out of her handbag and starts threatening the boy

The video then shows her pulling the knife out of her handbag as the person who is filming can be heard yelling, 'Grandma be careful.'

'Shut the f*** up, shut the f*** up,' the grandma yells while lunging with the knife toward her grandson in the back seat.

She then can be heard unbuckling her seat belt, as the driver motions his right hand for her to calm down.

'Shut the f*** up now, shut the f*** up, I'll stick it up all the way up your goddamn a**. Shut the f*** up,' the upset woman yells at the boy while motioning the knife towards him.

The unsettling video shows him cowering into the corner of the car, trying to get as far away from the knife as he can.

The unsettling video shows him cowering into the corner of the car, trying to get as far away from the knife as he can

'You ain't gon' do me like that, I will f*** your a** up, shut the f*** up, shut the f*** up now,' she shouted at her grandson while brandishing the knife

'You ain't gon' do me like that, I will f*** your a** up, shut the f*** up, shut the f*** up now,' she shouted at her grandson.

'Yes ma'am,' he can be heard replying while attempting to back all the way into the corner of the car.

The grandmother continues to threaten him with the knife.

'If you think I'm playing with your goddamn a**, I'm just as crazy as you is,' she tells the boy, while still pointing the blade at him.

The person filming the video can be heard giggling as the driver of the car continues down on the road, instead of stopping the car during the incident.

It's unclear where this video was recorded or when. It's also unclear what exactly transpired between the grandmother and the young boy before the video was filmed.