pan-pan /pæn.pæn/ noun2 •A radio call indicating a minor emergency requiring some assistance, or priority in handling, but not endangering the safety of the vessel or those aboard.You can use the same outline for Pan Pan calls. — 2005 •(historical) A Japanese prostitute who catered to American GIs in post-WWII occupied Japan.Their fiction does, however, reflect specificiteis of post-Surrender society; the women work as maids and pan-pan, American GIs are ever-present, and shortages and disruptions are commonplace. — 2004