Foinsapp! Toy Sound Effect Ideas?

A translator sent me a sound file today, wondering how I would transliterate it to English. The sound is for an upcoming Japanese toy you jab with a tiny sword. Like a pistol in Russian roulette, the toy eventually explodes; this sound is what you hear each time you plunge in the blade:

• Sword Jab Sound (28KB WAV)

In Japanese, the sound would be written shakin (shah-keen). What does it sound like to you? The more I pondered, the more my ideas started to resemble Don Martin sound effects from Mad magazine...though perhaps that's appropriate here.

For the ultimate list of Don Martin sound effects, visit the Don Martin Dictionary.