Couplie is a self-shot of a couple.

“情侣自拍”即一对情侣自己给自己拍摄的照片。

Example：

The selfie has competition from a new trend sweeping social media - the couplie.

“自拍”现在有了竞争对手——“情侣自拍”风正在社交媒体兴起。