This word and definition combo was invented back in 2002. We were at Virginia Beach, hanging out. We noticed that all of the attractive females, were with very goofy/unattractive men. At this time, the men were carrying a pizza, which apparently helped them out. This definition has since evolved, as the lesser attractive of the two people now do not necessarily have a pizza with them.
Person B "Yep, that's goofundum at its finest!"