Standard Lemma guide

wack

adj · name · noun · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈwæk/
  • Australia: Recorded audio is listed in the source snapshot.
  • rhymes with -æk
  • homophone: whack (wine–whine merger)
  • CMU ARPABET: W AE1 K Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Annoyingly or disappointingly bad, in various senses; lousy, corny, cringy, uncool, messed up.

Definition source: English Wiktionary via Wiktextract

Usage: slang

Examples

  • Every record they ever made was straight-up wack.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A surname.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An eccentric; an oddball; a weirdo.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

PCP, phencyclidine (as also whack).

Definition source: English Wiktionary via Wiktextract

Usage: dated

Qualifier: 70s drug slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A friendly term of address.

Definition source: English Wiktionary via Wiktextract

Usage: UK

Qualifier: Liverpool

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pal, mate

Antonyms: none provided

History

Etymology

Back-formation from wacky. Alternatively, possibly a blend of white + black, in the sense that it may appear black on the outside, but it's really white on the inside. Compare oreo.

Clipping of wacker (“a Liverpudlian; a resident of Liverpool, England”).

Across languages

Translations

9 source translations are retained for this English entry.

  • Spanish: pésimo — annoyingly or disappointingly bad, in various senses
  • Spanish: barbaridad — annoyingly or disappointingly bad, in various senses
  • Spanish: bestia — annoyingly or disappointingly bad, in various senses
  • Finnish: kumma tyyppi — eccentric
  • Finnish: kummajainen — eccentric
  • Finnish: outo lintu — eccentric
  • Russian: чудак (čudak) — eccentric
  • Spanish: estrafalario — eccentric
  • Swedish: galning — eccentric