make it up as you go
Meaning
To improvise; to decide or invent what to do while doing it rather than following a plan.
Origin
From the literal idea of “making something up” (inventing) in real time “as you go,” i.e., while proceeding. It became common in conversational English for improvising plans, stories, or methods on the fly.
Notes
Often casual and self-deprecating: ‘we’re improvising.’ Can imply flexibility, but in some contexts suggests carelessness or lack of preparation.
Examples
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We didn’t have a detailed plan, so we just made it up as we went.
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He forgot his notes and had to make up the presentation as he went.
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When you’re traveling without reservations, you often make it up as you go.
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I’m not sure how to teach this lesson yet—I’ll make it up as I go.
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The movie feels spontaneous because the actors were making it up as they went.
Grammar & Usage Notes
Common patterns: “We’ll make it up as we go.” “I’m making it up as I go along.” Tense/person changes, but core phrase is fairly fixed; “as you go along” is a common variant.
Synonyms
- improvise
- wing it
- play it by ear
- ad-lib
Antonyms
- plan ahead
- stick to the plan
- follow a script
- prepare in advance