Common idiom mistakes and fixes

Goal

Avoid high-level errors that make idiomatic language sound unnatural or forced.

Mistake 1: overloading

Problem: too many idioms in one short paragraph.
Fix: use 1-2 strong idioms, then switch to precise neutral language.

Mistake 2: wrong register

Problem: slang idioms in formal communication.
Fix: replace with neutral/formal equivalents.

Mistake 3: mixed metaphors

Problem: combining unrelated idioms in one sentence.
Fix: keep one metaphorical frame per sentence.

Mistake 4: literal translation from L1

Problem: inventing non-existent combinations.
Fix: learn idioms as full chunks with context examples.

Before/after examples

Too much: "Wir müssen Gas geben, sonst kippt das Boot und dann ist Polen offen."

Better: "Wir müssen jetzt schneller arbeiten, sonst geraten wir deutlich in Verzug."

Wrong register: "In Ihrem Antrag ist der Wurm drin."

Better: "Ihr Antrag enthält mehrere Unstimmigkeiten."

Final check before publishing/sending

Is each idiom context-appropriate?
Is the audience informal, neutral, or formal?
Can a neutral rewrite improve clarity?

Writing tip

Controlled idiom use sounds advanced; uncontrolled idiom use sounds performative.