stumble across (something)

stumble across (something)

To find, discover, or encounter something casually or by chance. I stumbled across this fantastic little café the other day. Let me know if you stumble across my keys. I haven't been able to find them.
See also: across, stumble
Farlex Dictionary of Idioms.

stumble across someone or something

 and stumble (up)on someone or something; stumble into someone or something
to find someone or something, usually by accident. I stumbled across an interesting book yesterday when I was shopping. Guess who I stumbled into at the library yesterday? I got lucky and stumbled on the right answer.
See also: across, stumble
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

stumble across

Also, stumble on. Find by chance, discover or meet with unexpectedly. For example, When we were hiking up the mountain we stumbled across a few abandoned shepherd's huts , or At the flea market Alfred stumbled on a quite valuable old lithograph. This idiom uses stumble in the sense of "accidentally trip." [Mid-1500s]
See also: across, stumble
The American Heritage® Dictionary of Idioms by Christine Ammer.

stumble across

v.
To come upon someone or something accidentally or unexpectedly: I had given up finding my keys when I stumbled across them lying under the dresser. On my way to work this morning, I stumbled across an old friend I hadn't seen in years.
See also: across, stumble
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • happen across (someone or something)
  • stumble
  • fall among (a group)
  • stumble against (something)
  • stumble onto (something)
  • plonked
  • let something drop
  • test the water
  • test the water(s)
  • test the water/waters