以前經(jīng)常一起八卦聚餐游玩的好友最近突然沒動靜了？快看看她是不是在朋友圈里秀恩愛呢吧。這些一談起戀愛就在朋友中間玩兒消失的人，你們真是“有異性沒人性”吶。

Hiberdating means dating in the winter months, or the situation that someone ignores all their other friends when they are dating a boyfriend/girlfriend. The second meaning is more popular. The word hiberdating is a blending of the word “hibernating” and “dating”, which means a person is in a state of inactivity(hibernation) among friends when dating someone.
Hiberdating指在冬季約會戀愛，或者指某人在談戀愛期間忽略其他朋友的情況，也就是我們常說的“有異性沒人性”。第二種用法更普遍一些。Hiberdating這個詞是hibernating（冬眠）和dating（約會）兩個詞的合成詞，由此便可知它的意思是一個人在約會戀愛期間中斷與朋友聯(lián)絡(luò)的狀況。

For example:

I haven't seen or heard from Jennifer since she started hiberdating Teddy four months ago.
自從4個月前詹妮弗跟泰德約會以來，我就一直沒有過她的消息。

（中國日報網(wǎng)英語點津 yaning）