Zip Bomb

A "Zip Bomb" is a term that is used for either a high NBT item, Zip Bombs can come in many different forms.

NBT Spam items
NBT Spam Items can mean a item that contains so much garbage data that it can have unforeseen effects on either players or a server. Here is an example : This piece of NBT code is just garbage data.

Shulker Zip Bomb
A Shulker Zip Bomb can refer to a shulker that contains shulkers in every slot of it, and that those shulkers contain shulkers in every slot of them. Here is a example of Shulkers containing shulkers : This cannot do any real harm and is just some shulkers containing each other.