verb (majiggered, majiggering, majiggers) - to monkey around with
something--usually when you don't really know what you're doing. Comes from the word thingamajigger, where 'majigger' is the function of the 'thing' you're talking about. The unknown/
strange action for the unknown/
strange object.
The time machine I bought on
ebay wasn't working, so I had to majigger with the flux capacitor thing to get it working.
Dude: What does that thing do?
Dudette: It majiggers
stuff.