FBI director Kash Patel really let loose with the USA Men’s Olympic hockey team Sunday … he was seen partying with the newly minted gold medalists in the locker room after their big win.

Check out the video … Patel — who plays a bit of hockey himself — is absolutely euphoric, appearing to chug part of a beer and christening the players around him with what was left.

One player even drapes a gold medal around Patel’s neck while he’s completely beside himself with joy.

The U.S. is bracing for a potential attack on Iran which could inspire threats stateside … not to mention the investigation into the killing of a would-be intruder at Mar-a-Lago and the ongoing Nancy Guthrie investigation.