Patxi en Japonés no significa lo mismo que aquí
Les copio y pego desde 3yen
Pachi-Pachi is the sound of popping Japanese bubblewrap which is mysteriously called aircap (エアーキャップ ) in Japanese. It turns out that AirCap (r) is the trademarked name for the bubblewrap and like in English bubblewrap, aircap is rapidly becoming a genericized trademark for this type air cellular cushioning material as its technically called.
However, looking at the Tokyo fashion show picture below all I can think of is Pachi-Pachi,Pachi-Pachi pop, pop, pop. I guess I will have to confine my efforts to this online, Pachi-Pachi Japanese flash game and use the manic mode for more satisfaction.