Arsenal striker says his nickname originated during his time at Manchester United.
When Danny Welbeck first signed for Arsenal, his £16 million acquisition was initially met with disappointment by the club's fans who instead had been hoping for Mario Balotelli or Radamel Falcao, who ended up joining Liverpool and Manchester United respectively, but have both underwhelmed.
The Englishman, a 23-year-old recruit who had become surplus to requirements at United, has thus far returned five goals and one assist from nine appearances in the Premier League and Champions League.
Whenever he performs well for the Gunners, it usually provokes a response of "Welbz, dat guy!" posts on social media, like Twitter.
"It started when Ravel Morrison tweeted it [in February 2013] and everyone just cottoned on to it," said Welbeck, revealing the source of the meme/nickname in the latest Arsenal newsletter.
"It’s a bit of slang in Manchester," he added. "Growing up, if you do something people often say, ‘he’s dat guy’. I think I scored a goal and Rav tweeted ‘Welbz is dat guy’ but it could be anything - dat guy could be anyone. It’s hard to explain!
"In high school, people used to say it all the time, a teacher can be ‘dat guy’ if you don’t like him! But it is usually used in a complimentary way. Not many of the guys have used it at Arsenal yet, although Ox has joked around saying it a few times. I didn’t realise it would be such a big thing on the internet!"