A 7-Eleven worker exploded with rage and snatched a cup from a Melbourne teen after claiming he had overfilled a Slurpee and made a mess.

Eli Tibballs filmed the confrontation inside the convenience store in Heathmont, Melbourne on Thursday afternoon and posted it to Facebook.

It is not unknown how or why the argument began but the owner's wife suggested it was because Tibballs had wasted slush while pouring his drink.

View photos The 7-Eleven owner exploded in anger after he claimed a teen had overfilled a Slurpee and made a mess. Photo: Facebook More

In the video, the man told Tibballs he could only have the drink if he paid for it first.

"I will just get another f*****g cup bro,” Tibballs replied and walked toward the machine to pour another one.

The store owner snatched the cup, placed it behind the counter and yelled at the teen to "get out!"

The agitated man then shouted hysterically at Tibballs and waved his finger in the teen's face.

The man's wife yelled out from the back room and told the teen her husband was angry because of wasted slush.

"What do you mean? Do you know how this f*****g Slurpee system works?" Tibballs said.

View photos With a child in hand, the wife stepped out of the storeroom and began to argue with her husband in a foreign language. Photo: Facebook More

View photos The agitated man then shouted hysterically at Tibballs and waved his finger in the teen's face. Photo: Facebook More

The teen asked the worker's wife what he did wrong before he provoked the man and they begin to argue again.

With a child in hand, the wife stepped out of the storeroom and began to argue with her husband in a foreign language.

She then gave Tibballs permission to go ahead and use the machine, at which point he lost his patience, swore at the woman and called her husband a "lunatic".

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