down-lownoun [ S ]
mainly US informalon the down-low
done secretly and not discussed, so that only a small number of people know about it:
Two colleagues were carrying on a relationship on the down-low.
Let's keep it on the down-low, okay?
英语词典包含110679条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。