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Related to tumble on: tumble dry
tumble on (something)
1. Literally, to trip on something with one's foot. I wasn't watching where I was going and tumbled on the root of a tree. The child tumbled on the steps of the house.
2. To find, discover, or happen upon something casually or by chance. I tumbled on this fantastic little café the other day. Let me know if you tumble on my keys—I haven't been able to find them.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
tumble onor tumble upon
To come upon something accidentally; happen on something: We tumbled on a nice restaurant while walking downtown.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.