It's the most powerful protocol in Minecraft, and Herobrine's favorite tool against Undoomed.
Undoomed: I'm untouchable!
Herobrine: I'm about to end this man's whole career! (activates Protocol 49)
The 49 effect is when games just seem so easy because you're a 4900+ peak overwatch warlord.
Referring to the article of the bro code saying you shouldn't sleep with a bros ex.
"Did you hear Jim is getting together with stacey"
"Yeah, that's against article 49"
When you go to a furniture/carpet/flooring store and they don't have the item in the shade of grey you wanted, the store is '49 Shades Of Grey'.
"I really like darker greys... This store is terrible. It's 49 Shades of Grey, if you get what I mean."
A nonsensical phrase that means furry women, otherwise can piss off strangers on the internet or make your friends mad as fuck if they are unaware of the definition.
"can i have the 49 xbox"
"stfu we dont have 49 xbox"
"but i want 49 xbox"