Morgan went soaring through the air to claim snowboarding big air bronze on Saturday. Expect him to come back down to earth some time next week.
Morgan is 28, an old man in a young man's sport but still a big kid at heart, painting the town, red, white and blue in the ultimate apres-ski celebration last night.
And he admits not remembering coming home, pushed into the Olympic Village on a luggage trolley. He later posted a picture of himself looking worse for wear after waking up.
"We went out for a party and everyone came, we had a great time," he said, after becoming named as the first snowboarder to carry the flag. "I was in bed pretty early, I sent it too hard, too early and peaked out.
"This morning I got called into the room and I thought I was in trouble but they gave me the honour of being the Olympic flag bearer and lead everyone out, it's crazy.
"Everybody has worked for a long time to get here, there's a lot trials and tribulations that all the athletes have been through and so to be asked to lead everybody out for the closing ceremony is an honour."
He added: "I'm not planning anything special, I don't need to plan things. I'm pretty nervous just thinking about it."
Billy Morgan of Great Britain reacts during the Men's Big Air Final on day 15 of the PyeongChang 2018 Winter Olympic Games at Alpensia Ski Jumping Centre on February 24
Image credit: Getty Images
Team GB chef de mission Mike Hay insisted Morgan, certainly not your conventional sportsman, was the right choice for the ceremony, which will close Britain"s most successful winter Games, with five medals eclipsing the four won in Chamonix 1924 and last time in Sochi.
"I'm slightly worried he gets to the right stadium and carries the flag the right way but he'll do a great job," joked Hay.
"His reaction was very humble and really looking forward to it.
"Billy became a bit of a people's champion yesterday with that big air bronze medal and it's a fitting tribute to his endearing character that he represents the whole of Team GB at tonight's closing ceremony."