吃瓜群众 chī guā qúnzhòng: onlookers who are interested in the spectacle but don't have anything knowledgeable to say about it.

Chinese: 刷刷微博，吃吃瓜。

Pinyin:  Shuā shuā wēi bó, chī chī guā.

English: Browse Weibo, hear some gossip.