I need help with spoiler tags

[darnkatz]

Can someone please explain this to me like I'm five? I want to post in the Harry Potter thread!   I tried doing a search but didn't understand what the post was talking about. How do I do this exactly? 

[londoncalling]

Do this to create a spoiler tag:

[spoiler*] enter the text that you want to be hidden here [*/spoiler]

Take out the stars to do it for real so that it appears like this:

SPOILER: Click to show

Harry Potter spoiler