I mean, guys do it! Seriously!
I saw a guy walking down the sidewalk with his girlfriend and he had a Kung Fu like grip on his crotch. I thought, "What the heck?" Did he need to go to the bathroom? No, he was leisurely strolling, not hurrying like you do when you need to go potty.
After a minute I laughed out loud, realizing he was just being "cool" and holding up his baggy pants. LOL! I have seen lots of guys around for years "jailing" with the baggy pants and exposed boxers, but never saw one hanging on to his crotch for dear life.
And no, it was not Justin Beiber in my apartment comples. I just wanted to have a "cool" pic for my post.