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It may not be the weirdest thing Lamar Odom has ever done, but in 2004, the NBA champ wore a prosthetic penis to pass a drug test for the upcoming Olympics in Athens.

Odom, 39, makes the revelation in his new memoir, “Darkness to Light,” according to People magazine.

“There was no way I was going to pass,” the former husband of Khloe Kardashian writes of the requisite drug test.

“I had been smoking weed every day that summer. Panic set in.”

Some online research on how to beat a drug test led him to order “a giant, rubber, black c— to arrive the next day,” he wrote.

At test time, he asked his trainer to donate a clean urine sample, filled the prosthetic, and used it to fake-pee into a cup as a NBA security official watched, he admitted.

“Welcome to Team USA,” the bamboozled official told him.

Also in the memoir, Odom admits that he began cheating on Kardashian soon after the wedding.

“I couldn’t keep my d–k in my pants or the coke out of my nose,” he writes, blaming the “lethal cocktail” of sudden celebrity, his diminishing NBA career, and his addiction.

In 2015, the former LA Lakers star overdosed at a brothel near Las Vegas during a five-day sex-and-drug binge, and nearly died.