Where exactly do you want it? If you mean in the subject line, I don't think you can - you can just choose among some default posticons when making your post/topic - look for those above where you enter the thread title.

And before the staff gets on your case, you should probably change that signature. Most swear words are looked down upon around here, and that's one of them.

*edits away the sig, redirects the topic to the correct forum* Questions like this belong in the EVC.