in b4

An abbreviation used on messageboards like /b/ in anticipation of a certain image, event, or meme occuring.

"In b4 Togepi" = I am sure that any second now, a picture of Togepi will be posted to this thread.

"In b4 b&" = There is no doubt that someone is about to get the banhammer because of their churlish behavior.

"In b4 v&" = I am quite certain that the FBI will soon be showing up to take us all for a ride in the party van, and if such a thing happens, you can't say I didn't see it coming.

in b4 by Frederico Lo Cunto December 26, 2008

in b4

a short for "in before" . Term used in forums around the internet such as 4chan

in b4 mods ban us

in b4 by Them4n3r February 11, 2015

inb4

An internet term that is short for "in before" used when someone replies to something before something that they anticipate to happen eventually happens.

Person 2: inb4 shit hits the fan

inb4 by OoftheDoof! July 19, 2021

inb4

Generally used on internet forums, inb4 refers to a user posting a reply to a message/topic "before" another user posts an obvious response. When used appropriately, inb4 is followed by a word or short phrase that the user knows will eventually appear in the topic conversation.

Jonny113: Jiraiya would beat the crap out of Itachi.

Steven387: inb4MS

Mike128: You know Itachi has MS, so Jiraiya doesn't stand a chance.

inb4 by CM Joker January 17, 2009

INB4

You are calling something, you bet that it will happen.

inb4 a nerd said this to you

INB4 by Womaniser March 5, 2016

inb4lock 

In before lock. To post in a topic before it gets locked.

inb4lock

inb4lock by Anonymous3154 November 3, 2008

inb4 404 

a 4chan phrase that means "in thread before (b4) it 404's (gets deleted (you get a 404 error message when a thread is deleted))

"Anybody got some CP?"
"inb4 404"

inb4 404 by Vermin Supreme January 3, 2009