A linguistic irritant XIII

I've never liked the expression, "Chop chop," as a way of telling people that a task needs to be completed quickly.  In all the years I supervised people at a previous job, I never used that expression even once.  No supervisor has ever said that to me, either.  Although it takes longer to say, "This is due in an hour, so let's all bear down and do this as quickly as possible," it's more polite than resorting to the rudeness and condescension of "Chop chop."