and then some

and then some

And more than has already been stated. The incumbent is so popular that you're going to have to campaign and then some in order to beat her. You will have to train and then some if you want to make the basketball team—there are so many good players this year. A: "This dessert is very rich." B: "And then some! I don't think I can finish it."
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Farlex Dictionary of Idioms.

and then some

and even more; and more than has been mentioned. John is going to have to run like a deer and then some to win this race. The cook put the amount of salt called for into the soup and then some.
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McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

and then some

And considerably more, as in I need all the help I can get and then some, or The speaker went on for an hour and then some. This idiom may originally have come from and some, a much older Scottish expression used in the same way. [Early 1900s]
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The American Heritage® Dictionary of Idioms by Christine Ammer.

and then some

and plenty more than that. informal, chiefly US
1998 New Scientist But by simply sitting still and digesting, a chick could double this rate and then some.
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Farlex Partner Idioms Dictionary

and ˈthen some

(spoken) and even more (than has already been mentioned): It rained for two hours and then some.
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Farlex Partner Idioms Dictionary

and then some

Informal
With considerably more in addition: This project will take all our skill and then some.
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American Heritage® Dictionary of the English Language, Fifth Edition.

and then some

A great deal more, more of the same. This intensifier is used in such contexts as “Their house needs new paint, a new roof, new landscaping, and then some,” or “There were speeches by the president, vice-president, chief financial officer, general counsel, and then some.” The phrase dates from the early 1900s.
See also: and
The Dictionary of Clichés by Christine Ammer
See also:
  • announce for
  • an uphill job
  • an uphill fight
  • an uphill battle
  • an uphill struggle/battle/task
  • uphill battle
  • an uphill struggle
  • according to
  • according to (someone or something)
  • task