An American student has come under fire after launching a tirade mocking British customs on Twitter.

Madi, 16, found herself trending on Monday after she poked fun at everything from Brits' grammar and diet to their 'pale' skin.

But she was eventually forced to turn off Twitter notifications on her iPhone after provoking an angry backlash from offended Brits, prompting her to reply: 'I literally made that thread based off a British person that I met on vacation yall need to chill.'

Scroll down for video

American student Madi, 16, sparked a Twitter backlash after launching into a lengthy rant about British customs including everything from grammar to food and even driving on the 'wrong' side of the road

Her first tweet on Monday evening said: 'im gonna do a thread on weird things British people do,' and she followed it up with dozens of tweets that led to her being labelled 'uneducated'.

One of Madi's biggest bugbears appeared to be British food. 'It's SHREDDED cheese not grated cheese,' she blasted, later adding: 'what do yall consider real cheese since when does cheese being wrapped in paper not make it real what else would it be imaginary?????'

She also appeared confused over the use of the word 'scone' as opposed to 'biscuit'.

In a later tweet, Madi mused: 'why do you guys say "Happy Christmas and not "Merry Christmas"??? Are y'all not merry enough????'

She had a few choice words to say about British spelling, too, asking: 'why do yall add unnecessary u's to words like honour and favourite it's literally honor and favorite,'

She also blasted: 'why do you say mum and not dud since yall are obsessed with u's,' and: 'Since when is an apartment called a flat that's weird stop it.'

In one of her more incendiary tweets, she asked why Brits were all 'so pale', which prompted a stream of angry Brits to ask why Americans were 'all so fat'.

And in a tweet that was shared 165 times, Madi said: 'why do yall drive weird first off the steering wheel is on the wrong side of the f***ing car + u drive on the wrong side of the road.'

The teen took umbrage with the word 'scone' and, in one of her more incendiary tweets, she asked why Brits were all 'so pale', which prompted a stream of angry Brits to ask why Americans were 'all so fat'

She also pondered the meaning of Boxing Day, a tradition that is not widely celebrated in the US, and the meaning of the word 'bloody'.

Madi professed to be confused over why Brits say 'maths' rather than 'math' and why our drinking age is so low at 18.

And in a tweet that was liked 300 times, she mused: 'why do many telephone booths yall got cellphones right.'

Madi asked: 'Why is the train called a tube that's not how it works,' as well as pondering our need for phone boxes and red buses

Crucially, she seemed baffled by English slang, saying: 'your excessive use of lad and mate why can't you just say friend I don't get it.'

She also tweeted: 'RED BUSES EVERYWHERE.'

It is unclear whether Madi has ever visited the UK, although she claimed her observations were inspired by a British person she had meet while on holiday.

Suffice to say, her comments did not go down well with Brits on Twitter and as the barrage of abuse poured in, she announced she was turning off her Twitter notifications and said: 'someone called me a fatty because I asked why there's zig zags on the streets.'

Madi later wrote: 'can I add learn to take a joke to the thread because yall can't seem to take one.'

She explained: 'I literally made that thead based off a British person that I met on vacation yall need to chill.'