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Screw loose

Idiomatic Phrase
Pronunciation

Understanding ARPABET Pronunciation

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The pronunciation guide uses the ARPABET phonetic system—the same system used in speech recognition and text-to-speech applications.

Vowel Examples:
AE1 = cat, bat
EH1 = bed, head
IY1 = see, me
OW1 = go, boat
UW1 = boot, do
Stress Numbers:
0 = no stress (unstressed)
1 = primary stress (loud)
2 = secondary stress (medium)
Example:
AH0 TH IY1 N AH0
= a-THEE-na (Athena)

The stressed syllable (marked with 1) is pronounced louder and clearer than others.

Quick Definition

Mentally unstable, eccentric, or not functioning properly; mechanical metaphor describing loose screw causing malfunction, applied to behavior suggesting irrationality or cognitive impairment.

Detailed Definition
Screw loose means eccentric, irrational, unstable, or not thinking clearly, but it can sound dismissive or mocking and should be used with care. In poetry, the idiom may reveal a speaker’s judgement, prejudice, impatience, or comic bluntness rather than a fair description of another person. The mechanical image suggests that the mind is a device with one faulty fastening. A poet can use it to explore social labelling, eccentricity, distress, and the uneasy boundary between difference and disorder.
Example
Example in poetry:
A comic poem might say the inventor has a screw loose after building wings for a donkey; In satire, the court calls every truth-teller a man with a screw loose; The phrase means eccentric, foolish, or mentally unsound; A poet should use it carefully because it can be mocking.
Additional Notes
A screw loose means eccentric, irrational, or mentally unstable. Because the phrase can sound mocking or ableist, students should treat it critically and use it carefully. The mechanical metaphor imagines the mind as a machine made faulty by one loosened part. In poetry, it may reveal a speaker’s dismissive judgement rather than objective truth. It suits character voice, satire, or social cruelty more than respectful description of distress.
Also Known As
crazy
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