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jizz up

Jizz up in its dated slang sense means to excite, hype up, or rev someone into action — the jizz here comes from jazz, not its more contemporary meaning, making this a false cognate that trips people up.

ˈd͡ʒɪz ˈʌp85 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 28, 2026

Jizz up in its dated slang sense means to excite, hype up, or rev someone into action — the jizz here comes from jazz, not its more contemporary meaning, making this a false cognate that trips people up. It was used in early-to-mid 20th century American slang with the same energy as jazz up: to make something more lively or stimulating.

The coach tried to jizz up the team at halftime but they were already two goals down.
Origin: Variant of jazz up, from jazz (energy, spirit). Jizz was an alternate spelling of jazz in early American slang before the two words diverged in meaning. Editorial expansion authored on Slangora (model-assisted, hedged).
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#2·Apr 27, 2026

(slang, dated) To excite or work up (someone).

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