她一直和一个有妇之夫鬼混。 She's been fooling around with a married man.

他就知道鬼混，他没钱。（鬼混：没有正当职业。） 别和那些流氓一起鬼混。（鬼混：和鬼混的人在一起。）

it’s not a really good term actually ,and in reality we use it in the following situations or contexts 1.muddle through your life ,just like “fool around “在外鬼混多年，没挣到什么钱。生活没有目标，只能天天和朋友鬼混。 2.emmm,I’ll give you an example then you may understand what 鬼混 means in some certain context.>>>he is actually fooling around with his assistant behind his girlfriend. by the way, I only use mandarin (simplified), but there is a minor mistake in you first topic:请举一些用鬼混的例子/请举一些用鬼混造的句子，which can be better ：）

對不起，標題有錯誤，該說“怎麽用：鬼混”