in less than no time
In a very little amount of time. That test was so easy, I was done in less than no time. The repair is a cinch. I should be finished in less than no time.
in less than no time
Fig. very quickly. (See also (at all)">in no time (at all).) I'll be there in less than no time. Don't worry. This won't take long. It'll be over with in less than no time.
in less than no time
very quickly or soon. informal