go on and on
See go on, def. 5.
Continue without stopping, last for a long time, as in This trail goes on and on, or The movie went on and on. This usage was first recorded in 1938.
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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.