To plot or scheme in a decidedly rat-like manner, esp. when formulating an agenda for the acquisition of cheese and/or shiny objects.
Just look at those two nefarious-looking furry midgets in the corner there... they are clearly rataplanning something.
by Safbot July 29, 2010
Can you define these popular missing words?
The planning stage for an event that occurs after the pre-plan but before the actual preparation for the event.
"I don't want to shower and get ready yet, I have like three more hours to rataplan before I have to do any of that."
by 453Lincoln April 09, 2010