ruminate about

ruminate about (something)

To give great consideration to something; to ponder on or think about something very deeply. We sat ruminating about various ways to improve our business model when Janet suddenly came up with a brilliant idea. Well, your review has certainly given me plenty to ruminate about.
See also: ruminate
Farlex Dictionary of Idioms.

ruminate about something

 and ruminate on something
to ponder and think about something. (Alludes to a cow, relaxing and chewing its cud, as if it is thinking.) He sat, ruminating about the events of the day, humming and eating peanuts. Let me ruminate on this a little bit.
See also: ruminate
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • a/the feel of (something)
  • (I) wouldn't (do something) if I were you
  • a straw will show which way the wind blows
  • a crack at (someone or something)
  • all right
  • (you) wanna make something of it?
  • all for the best
  • a thing of the past
  • a slew of (something)
  • a bird in the hand
References in periodicals archive
Meanwhile, a load of DLT followers ruminate about how the world's gone potty if you can't whistle at a pretty girl these days.
PLEASE BLOW FINAL WHISTLE
We think that high emotional intimacy and sharing in the marriage may encourage a woman's tendency to ruminate about her depression, disrupting her ability to be available and supportive with her children," she said.
Depression among dads can affect quality of father-child interaction
The master apologist did not ruminate about himself overmuch.
C.S. Lewis; life, works, and legacy; 4v
The collection illuminates life so you can ruminate about its sweetness and richness (hence the "chocolate" in the title).
Allenbaugh, Kay. Chocolate for a teen's dream; heartwarming stories about making your wishes come true
Although as editorial page editor and writer she was no doubt called upon to apply her subtle understanding of Washington anthropology in deciding where the Post should stand on various issues, as a writer--and henceforth, when I refer to "Greenfield," you can assume I mean Greenfield the columnist and author--she seemed content to ruminate about human frailty and folly.
WASHINGTON
In fact, individuals suffering from depression often ruminate about being depressed.
Rumination study 'may provide insights into depression, its treatment'