Keeping The Demons Out

The act of wearing a butt plug

“Dude why are you keeping the demons out?”
“cause it feels good”

Keep your dick out of your mailbox

Don't fuck your coworkers. Don't date your coworkers. And especially don't do any of that with your boss

Dave: "Dude I fucked my secretary last weekend" You: "Keep your dick out of your mailbox, Dave"

keep the barrel side out

To play down an argument in your in-group in favour of focusing on dealing with an out-group

“Let’s keep the barrel side out , fight the enemy; not each other.”