The mandatory dress code, implemented in 2005, requires players to wear at least a jacket while shunning jeans, hats, T-shirts and the like.
Young, who goes by the nickname "Swaggy P," wore a bright blue suit to Staples Center with sparkling white shoes and no socks.
The 6-foot-7 USC product stopped conversation when he walked into the locker room before the game -- later posing for photos in the adjoining corridor.
"That's terrible," said teammate Chris Kaman, who vowed he wouldn't wear the outfit for any amount of money.
Young is featured in the March issue of GQ magazine, posing with his Australian girlfriend, rapper Iggy Azalea.
Working through a knee injury, Young is currently out of action, at least through the weekend.
Through 49 games, Young has averaged 16.8 points.