Finding courage with 気が大きくなる

The expression 気(き)が大(おお)きくなる describes a psychological state where someone becomes overly confident, bold, or carefree, often to the point of being reckless or indulgent. This phrase is typically used in situations where a person’s emotions or circumstances cause them to behave in a way that they might not normally. It is often a temporary change in state of mind, such as being emboldened due to external factors (e.g., alcohol, winning a game, or peer influence).

Examples

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Becoming uninhibited with 気が大きくなる

Bocchi was up late reading a book on how to make friends. At the time, she was overly enthusiastic, but at school the next morning she finds her social anxiety has returned.

ぼっち:

「夜(よる)は気(き)が大(おお)きくなる」

“Last night I became uninhibited.”

なこ:

「おーぼっち　おはよ」

“Oh, Bocchi, morning!”

「？　どした？」

“What's wrong?”