#BBCtrending: Why Kenya ‘always wins’ its Twitter wars
2 May 2014 Last updated at 12:15 BST
There's a Twitter war - or "twar" - going on between Kenya and South Africa at the moment.
Kenyans on Twitter started the hashtag in response to disparaging comments made by South Africa's Sports Minister Fikile Mbalula about Kenya's swimming team.
This isn't the first country Kenyans have "told" - Nigeria and Zimbabwe have been targeted before, as Kenyan comedian Eric Omondi tells BBC Trending.
Video produced by Benjamin Zand.