In two shakes of a lamb’s tail:
Very soon.
“In two shakes of a lamb’s tail（羔羊摇两下尾巴的工夫）” 表示 “马上就做某件事情，一晃就好”。现在，在口语会话中，人们更常使用这个短语的简短形式 “in two shakes”。
例句
I’m on my way. I’ll be there in two shakes.
我在路上，马上就到。
My car wouldn’t start but in two shakes of a lamb’s tail, my friend turned up to help me fix it.
我的车发动不起来了，但才一晃的工夫，我的朋友就过来帮我修车了。
Don’t go anywhere. Dinner will be ready in two shakes of a lamb’s tail.
哪儿也别去。晚饭立马就好。
