in two shakes meaning in English

马上, 立刻

Sit you down and take your boots off, and i'll have your breakfast ready in two shakes .
快坐下吧，脱掉靴子，早饭马上就好。
Be with you in two shakes . i ' m gonna make a call
我先打个电话，马上回来
" steven , they are going to leave without us , " richard said . " tell them i ' ll be ready in two shakes . " replied steven
史蒂芬，他们不等我们要先走了，理查说。告诉他们我马上就好。史蒂芬答道。
Well , if i speak back , pikes will be going in two shakes ; if i don t , silver will see there something under that , and the game s up
好，要是我回嘴，一眨眼就会刀枪相见要是我不，西尔弗就会看出里面有鬼，计划就会泡汤。