Standard Lemma guide

knocker-upper

noun · 3 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

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1

noun

Meaning 1

Alternative form of knocker-up (person who knocks to awaken in the morning).

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

.

Definition source: English Wiktionary via Wiktextract

Qualifier: a tool to hammer the top head of a cask into place through the bung hole

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The male who has sired a pregnancy.

Definition source: English Wiktionary via Wiktextract

Usage: humorous, informal

Examples

  • What, Shelley is pregnant?! Who's the knocker-upper? [ = Who's the father?]

Meaning relationships

Synonyms: sire, father, dad, daddy, baby daddy

Antonyms: none provided

History

Etymology

By a regular pattern for (informal) nouns seen also in similar forms, such as fixer-upper and cleaner-upper; the sire sense involves an extra degree of wordplay, as an alternative surface analysis of knock (h)er up + -er is playfully apparent (who knocked 'er up?).