あっぷあっぷ
appuappu

Suru Verb
To-Adverb

1. floundering while nearly drowning

Suru Verb
To-Adverb

2. suffering

みっ 連続 れんぞく徹夜 てつやしてるから、もうアップアップだよ。
mikka renzokude tetsuya shiterukara mō appuappudayo.
After three straight late nights at work, I feel like I'm drowning in work.