moonbounce:

0) Simple, high level objects based on the bouncycastle lightweight crypto API

1) The crypto behind the VaultletSuite™: secure spam-free email, secure password management, and file encryption utilities

2) Sponsored by txikisoft

3) Soft, carnival-like activity that's easier to ride than the original bouncycastle (which is made for bigger kids) , and harder to fall off of. Or at least it hurts a lot less when you do

Pronunciation: moon-bounce
Part of speech: noun
Etymology: neologism based on moon and bounce