Idioms and Phrases with think back
Recall or reflect on, as in When I think back on my days as a summer camper, I really had a good time, or As he thought back to his father, long dead, tears came to his eyes. [Mid-1900s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.