This is the 6234th most frequent Japanese word.
クラクラ
"クラクラ" means feeling dizzy or lightheaded.
Here, 'クラクラ' describes the sensation of dizziness or feeling faint.
頭がクラクラして倒れそうだ。
My head is spinning, and I feel like I might faint.
In this case, 'クラクラ' is used to indicate a physical reaction to the heat, causing dizziness.
この部屋の暑さで身体がクラクラする。
The heat in this room is making me feel dizzy.
Here, 'クラクラ' metaphorically describes an emotional reaction, like the effect of strong attraction or charm.