d.u.b.s.
D. u. b. s. is the art of hiding your hard-on with your belt or pants. If you’re fancy, you can even use your underpants to make it look like you’re wearing a shirt.
I did D. u. b. s. with my pants and looked like a boss.
He did D. u. b. s. and still got caught.
I did D. u. b. s. and my head peeked out during gym.