bushed

动词 bush:

1. provide with a bushing
   同义词：bush

形容词 bushed:

1. very tired
   同义词：all in, beat, dead

bushed

adj.Informal （形容词）【非正式用语】
Extremely tired; exhausted:
极度疲劳的；疲惫不堪的：
例句：
.I once stayed awake seven years on end. Not even a nap. Boy, was I bushed.(Martin Amis)
.我曾经有七年完全没有睡眠。甚至没有打一个盹儿。孩子，我疲惫极了.(马丁·埃米斯)

来源：
Possibly from Australian slang [lost in the bush]
可能源自 澳大利亚俚语 [不知所措]