To waste time. A cute way of saying "fuck around." Combination of "circum-" meaning "around" as in "circumnavigate" and "fornicate," to fuck. Usually good for a puzzled experssion followed by a chuckle the first time someone hears it. Akin to circumflatulate, but harsher and harder to explain in polite company.
Flat Earthers definition of "globalization," the process by which businesses or other organizations develop international influence or start operating on an international scale around the circumference of the flat earth.