A local cultural preservationist in Chinatown has gone viral for his innovative technique of promoting Mandarin literacy through the medium of aggressive, beer-fueled English profanity.

The linguistic scholar was filmed heroically shoving a teenager while screaming, "You think you're better than us?" in the very language he was currently condemning as a sign of elitist arrogance.

"This boy damn action one, speak English like he from London," remarked a witness, a nearby diner.

"The drunk uncle shout 'speak Chinese' but he himself also cannot find the words in Mandarin, so use 'f-word' to bridge the gap lor," he added.

"Very inclusive, but his English also half-past-six!"

The patriot even offered to pay the teen’s bill, proving that in Singapore, linguistic purity is best enforced with unsolicited financial charity and chronic liver failure.