BYM 

BYM is the acronym for beat your meat

Also see BMM

Guy 1: Dude, I have a fun game. Try to see how fast you can BYM. It relieves stress!

Guy 2: BYM?

Guy 1: Yeah! Beat your meat!

Guy 2: Ah! Okay, I should try that sometime. I'll so shatter your record.

BYM by SwannyJ April 28, 2009

bym 

A combination bar and gym. A one-stop shop for athletic people who like to have a good time after hours.

Michael: What are you doing today?

Lindsay: Well, I need to exercise. And later I want to go out and have a few drinks.

Michael: Save some time and just go to the bym. They have good specials.

bym by BluthBananaMan July 23, 2010

Bym 

It means to go masturbate but your the one saying it or what you could say "Beat Your Meat".

Brother:time to enjoy myself
Sister:EW!
Brother:what!?
Sister:go bym in your room!
Brother:I am
Sister:oh,still EW!

Bym by smartJAVE1 November 19, 2018

bym 

Boned ya mum. Yet another reply tro everything people say to you. Ask a question, its your simple reply.

Ow are ya 2day?
Boned ya mum

what did u do today?
bym

bym by Phunin October 1, 2003

bym muscles 

Beat your meat muscles - biceps muscles guys get after beating their meat off.

Dude your muscles aren't real, they're just bym muscles

bym muscles by Meish September 16, 2017

Bymen 

The figurative hymen that is broken the first time you engage in anal sex, also know as your butt hymen.

Krista seems to be walking very funny today, she must have let her boyfriend pop her bymen last night.

Bymen by Ryan The Insane One October 7, 2011

Directed by M. Night Shymalan 

A phrase used to point out a major twist in a film, conversation, or story.

The phrase originates from Shymalan's notorious reliance on twist endings. It usually holds a scornful connotation, due to the lackluster quality of many of Shymalan's recent films.

It is most commonly seen on boards such as Reddit, Tumblr, or 4chan.

Person A: "...and then it turned out that he was actually a transsexual midget standing on another midget's shoulders."
Person B: "..."
Person C: "Directed by M. Night Shymalan."

Directed by M. Night Shymalan by cheekytriangle July 7, 2011