フーフー
fūfū

Suru Verb
To-Adverb

1. blowing repeatedly (e.g. to cool something down)

Onomatopoeia
To-Adverb

2. huffing and puffing; puffing and panting; gasping

Onomatopoeia
Adverb

3. struggling (with work, studies, etc.); having difficulty

Onomatopoeia
Other forms: