inb4

conj

inb4

conj

Etymology From in before. It originated on 4chan: on threads that users thought would be locked, they would comment "in before the lock", or "I got a comment in before the thread locked." Before then got abbreviated independently into B4 or b4.

Internet Preemptively responding to a predicted circumstance or response.

inb4 he loses again

Synonyms: before

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.