1 general:: Phrase(s): two shakes of a lamb’s tail Fig. quickly; rapidly. • I’ll be there in two shakes of a lamb’s tail. • In two shakes of a lamb’s tail, the entire pile of bricks had collapsed.
McGrawhill's American Idioms And Phrasal Verbs
2 general:: see IN TWO SHAKES OF A LAMB'S TAIL.
American Heritage Idioms