thick as two short planks

adj

"thick-as-two-short-planks" is a 21-letter English headword indexed on PlainSpell.

The verdict

“thick as two short planks” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
25
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Very stupid.

Corpus desk

Index EN-thick-as-two-short-plank · thick as two short planks · English

thick as two short planks · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 25 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "T" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for thick as two short planks
PropertyValue
Headwordthick as two short planks
LanguageEnglish
Part of speechAdjective
Letters25
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “thick as two short planks” in English

thick as two short planksranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

thick as two short planks is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Very stupid.".

thick as two short planks doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.

This entry's etymology isn't recorded, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is thick as two short planks, spelled T-H-I-C-K- -A-S- -T-W-O- -S-H-O-R-T- -P-L-A-N-K-S.

Definition

  1. 1
    Very stupid.

Recorded use

Wiktionary example

These source excerpts show how thick as two short planks appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. “I dunno. He’s thick as two short planks of wood, but his six brothers are all banged up in here, so he’s got eyes and ears all over the prison. Auntie Flip better watch out.”

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "thick as two short planks"?
"thick as two short planks" is spelled T-H-I-C-K- -A-S- -T-W-O- -S-H-O-R-T- -P-L-A-N-K-S.
What does "thick as two short planks" mean?
As an adjective, "thick as two short planks" means: Very stupid.
What language does "thick as two short planks" come from?
"thick as two short planks" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list