Tenohira o Kaesu
English Term: Tenohira o Kaesu / To flip one's stance overnight
Japanese (Kanji): 手のひらを返す
Hiragana: てのひらをかえす
Romaji: Tenohira o Kaesu
Quick Definition
An idiom meaning to abruptly reverse one's attitude, opinion, or allegiance — often opportunistically and without reflection.
It describes instant, visible reversal.
Literal Meaning
手のひら (tenohira) = palm of the hand
返す (kaesu) = to flip / turn over
Literally:
"To flip the palm."
The image is immediate and physical.
Up → Down
Support → Opposition
Dismissal → Praise
No transition phase.
Core Meaning
手のひらを返す implies:
- Sudden opinion change
- Opportunistic loyalty shift
- Crowd mentality swing
- Hypocritical reversal
It carries mild to strong criticism.
The speed is the point.
Representative Anime Patterns
Crowd Reversal Trope
Common scenario in anime:
- Protagonist is mocked, doubted, or condemned.
- A decisive victory occurs.
- The same people immediately praise them.
This structural flip is 手のひらを返す.
It appears in:
- Sports anime
- Battle shōnen
- Fantasy academy arcs
The reversal often feels exaggerated — intentionally.
Institutional Reversal
Media commentators or authority figures:
- Declare someone incompetent
- Then instantly celebrate them after success
This is 手のひらを返す at systemic level.
Related Slang Expressions
Modern internet culture exaggerates the idiom through humor.
手のひらクルクル
Literally: "Palm spinning around and around."
Used online to describe rapid fan opinion reversal.
Example:
A character criticized one episode → praised the next → criticized again
Fans say:
「手のひらクルクル」
It implies:
Overactive flipping.
手首が捩じ切れる
Literally: "The wrist is twisting off."
Hyperbolic version of repeated reversals.
It suggests:
So many flips the wrist can't handle it anymore.
This is internet satire.
Narrative Function
手のひらを返す serves to:
- Expose instability of public opinion
- Critique performative loyalty
- Highlight protagonist isolation
- Create irony
It is structurally tied to:
- 群集心理 (mob psychology)
- 世間体 (public gaze)
- 認知バイアス (cognitive bias)
The crowd is reactive, not principled.
Distinction from Growth
Important distinction:
Gradual reconsideration ≠ 手のひらを返す
Growth involves:
- Reflection
- Internal conflict
- Narrative transition
手のひらを返す is abrupt.
It lacks visible process.
Cultural Insight
Japanese society values:
- Social harmony
- Alignment
- Group stability
Therefore, visible reversal is socially striking.
The idiom critiques surface-level loyalty.
It questions:
Was the original support genuine?
Comparative Perspective
Closest English equivalents:
- Flip-flop
- Turncoat
- Switch sides overnight
However, the Japanese idiom emphasizes:
Physical flipping.
It is theatrical.
Structural Insight
In storytelling, 手のひらを返す can function as:
- Satire of the masses
- Commentary on fame
- Tool for emotional catharsis
- Marker of power shift
Used carefully → sharp social critique.
Used lazily → shallow crowd writing.
Dictionary Classification
Primary Alphabet Index: T
Primary Kana Index: た行（て）
Primary Category: Idiom
Secondary Categories:
- Social Psychology
- Crowd Behavior
- Internet Slang
- Narrative Reversal