bumbling
adj. 装模作样的；笨手笨脚的；爱管闲事的；胡乱的
v. 笨手笨脚；跌跌撞撞地前进；模糊不清地说话；（昆虫）发嗡嗡声（bumble 的现在分词）
例句
I could hear him bumbling around in the kitchen.
我听得见他在厨房里瞎折腾。
《牛津词典》
Most of us are novices on the computer – just bumbling about on them.
我们大多是电脑新手—就在那里瞎折腾。
《柯林斯英汉双解大词典》
What are you doing here, you bumbling frog?
你这个笨青蛙，你在这里做什么？
