Running Silent 

In nautical terminology Running Silent (also known as Silent Running) is defined as a standard operating procedure used by the crew on a submarine when they wish to become or remain as undetectable as possible.

Slang Term: The act by a person to either avoid complete detection or to minimize one's presence. To hide or be deceptive or sneaky.

Similar slang expressions are: Going Ghost, Hide and Seek, Under the Radar, Stealth Mode, Duck and Cover, On the Down-Low, etc.

Ever since I asked Damian about the money he owes me he's been running silent and avoiding me at every opportunity.

Running Silent by Who 'Dis? Who 'Dat? April 30, 2019

Gay silence 

When people start talking about straight stuff and you’re totally gay but no one knows it even though you’d think it’d be pretty obvious by now so you’re just sitting there like yeah cool guys—it’s like an inside joke with yourself.

Practically invented by Jodie Foster

“What kind of fella would you like?”
*gay silence*

Gay silence by Hallohillo July 22, 2019

The Silence 

The Silence was a... wait, why was I typing this again?

Whats "The Silence"?

The Silence by GurrenUnplug June 19, 2013

Jay and Silent Bob 

All you motherfuckers are gonna pay. You are the ones who are the ball-lickers. We're gonna fuck your mothers while you watch and cry like little bitches. Once we get to Hollywood and find those Miramax fucks who are making that movie, we're gonna make 'em eat our shit, then shit out our shit, then eat their shit which is made up of our shit that we made 'em eat. Then you're all you motherfucks are next.

Love, Jay and Silent Bob.

Jay and Silent Bob by Joe (Tyrano) December 29, 2004

silent laughter 

When something is so funny, or you are in a state of such slap happiness, that regular laughter transforms into an almost silent and uncontrollable activity. Usually accompanied by tears, silent laughter is most likely the best kind of laughter. You have to make a conscious effort to remember to breathe as your lungs lose air fast in the process of silent laughing. Your ribs start to ache and you begin to wonder if you'll be physically able to take a deep breath before resorting to more silent laughter. Friends and family may laugh at you in this state, or they may be joining in right next to you. Concerned strangers will stare at you and seriously consider finding you help, or they may just hide you from their children.

After I mentioned an inside joke, I looked over to my friend who was doubled over with silent laughter.

silent laughter by Blueshue July 12, 2014

silent but deadly 

When a fart can be emitted so silently yet its strong enough to floor a rhino.

Eating a Meat-Lovers pizza gives you silent-but-deadly ass-gas.

silent but deadly by Didda Tinkle May 24, 2004

pregnant silence 

The sort of silence you get when someone's fucked.

Alice: Okay, our final project's due tomorrow. Can I see your half?
Bob: ...I didn't do it.
*Pregnant silence*

pregnant silence by lukebn July 27, 2010