Odell Beckham doesn't need a damn invite to have a good time -- the NFL superstar straight-up crashed Sean McVay's wedding over the weekend ... and the Rams coach loved every second of it!!
McVay got hitched to his longtime GF, Veronika Khomyn, at an incredible ceremony in Beverly Hills ... but explained to the "I Am Athlete" podcast the guest list was kept pretty short, so only a few current Rams players made the cut.
"So, I just invited the captains from last year's team and then there was a couple of other guys that are retired players that you still have great relationships with," McVay said on the pod.