A track meet in Colombia turned NSFW real quick on Thursday ... when Italian decathlete Alberto Nonino's junk popped out in the middle of a race.
The unfortunate moment happened in the 400-meter event at the 2022 World Athletics U20 Championships in Cali ... when Nonino was forced to lose his spot at the front of the pack and cover up his privates several times before crossing the finish line.
While the mishap will naturally have some folks giggling and blushing, Nonino went to social media to explain he wasn't in the laughing mood after the race.