Doesn't that just jar your tomatoes

Does anyone have info about, "Doesn't that just jar your tomatoes?"

I've never heard that. Kind of along the lines of, "Doesn't that frost your cookies." Or "rattle your cage." The image that I get is home-canned tomatoes in glass Mason jars on a shelf in the cellar. If someone knocks up against the shelf, the glass jars clank together.

Since the expression seems to have humorous intent, perhaps it is a play on the meanings of the verb jar. One is "to put in a jar," which is what you do when you can tomatoes. The other is, as ESC has noted, to knock up against.
And I've never heard the expression either.
SS