inb4

conjunction

Preemptively responding to a predicted circumstance or response.

“inb4 he loses again”

Similar
before
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Meanings

conjunction

alternative in before

  1. InternetPreemptively responding to a predicted circumstance or response.

    inb4 he loses again

    Synonyms: before

Synonyms & antonyms

conjunctionPreemptively responding to a predicted circumstance or response.

Similar
before

Origin

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.

Full word history & related roots →
Cite this entry
APA

inb4. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/inb4

MLA

“inb4.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/inb4. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “inb4,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/inb4.

Source: inb4 on Wiktionary, CC BY-SA 4.0.