1. the origin of the word "jumbo jet" (usually used by non-avgeeks and news anchors LOL)
2. a plane that was made by boeing that changed the aviation industry and so it could be modified easily to make it into a freighter
1. Person A: omG!1! loOK aT thAt jUmBo jEt111!!!
Person B: wtf
2. Person A: look its a boeing 747-400!
Person B: nice