Senses
别客气/ 別客氣 no formalities
please don't be formal; feel free to act informally or help oneself
大家随便吃，别客气。
别客气/ 別客氣 you're welcome
don't mention it; a polite response to an expression of gratitude
“谢谢你送我回家。”“别客气。”
References
No references for this word.