fool, buffon, wazzock. 傻子, 小丑, 傻子兼小丑

Agence France-Presse — Getty Images
British Have a Go at Trump but Shy Away From a Ban - The New York Times
They called him a “fool,” a “buffoon” and even a “wazzock” — English slang for a combination of the two.
http://www.nytimes.com/2016/01/19/world/europe/donald-trump-british-parliament-debate.html?_r=0
禁止特朗普入境？英国国会激辩三小时 - 纽约时报中文网 国际纵览
http://cn.nytimes.com/world/20160120/c20uktrump/zh-hant/

British lawmakers debate banning Donald Trump - CNN Video
http://edition.cnn.com/videos/world/2016/01/18/british-lawmakers-talk-banning-trump-intv-gorani-wrn.cnn