piin
The body, limbs, or tail stretching out stiffly and tautly. A rigid, fully extended physical state.
💡Used for a cat stretching its tail straight, muscles locking up, or standing at rigid attention.
猫がしっぽをぴーんと立てて走ってきた。
The cat came running with its tail sticking straight up.
The dog's ears went ___ straight up when it heard a sound.
音を聞いて犬の耳が___と立った。