Asda worker Mr Andrews said he instantly regretted the stunt as he began sliding down, but was unable to stop himself.
He told the Standard: “I was that drunk - I’d had about 10 pints - the escalator was free and I thought, ‘why not?’
“It was faster than I thought it would have been. But as I was sliding I couldn’t stop myself and had no choice.
“I did regret it.”
Mr Andrews and friends were on their way home from watching the PDC World Championships at Alexandra Palace.
He said at the time, he did not feel any pain because of how much he had had to drink.
However the next day, he was barely able to walk.
“I was so drunk I did not feel a thing until I woke up yesterday and could not move.”
He added: “My family think I was an idiot. But now it’s happened they think it’s really funny.
“I wouldn’t recommend it to anyone else though.”
The video, which has gone viral, has been viewed online nearly 10 million times.