Wiktionary
in two shakes of a lamb's tail
adv. (alternative form of in two shakes English)
Usage examples of "in two shakes of a lamb's tail".
But there is no scintilla of doubt that the inestimable Master Cawdor will be here with us in two shakes of a lamb's tail.
Alex Trebek told the contestants -- and the viewing audience -- that it was still anybody's game, and they would be back to play Double Jeopardy, where the scores could really change, in two shakes of a lamb's tail.