In SecondLife we have something called
"gestures", which are pre-programmed messages often combining sounds with words or other signs in local chat.
Gestures can be quite amusing if they are not used too often and are reasonably short and sweet.
As an example of this kind of gesture I will one I received as a birthday gift from my dear friends Vampi Twine-DeSantis-McMillan- McMillan (honorary) and her husband sirhc DeSantis-McMillan.
Having activated the gesture beforehand all I have to do to play it is write the trigger in local chat. The trigger to this particular gesture is "/bock". So when I (or anyone who happens to have the gesture) write that trigger in local chat and press enter everyone in the room will hear sirhc saying with his sexiest voice; "Bock is in the building" at the same time as they see the same line appear once in local chat.
Another example is the popular gesture "Yeahaaaawwwwwwwwwww!" where you will hear a someone shouting yeahaw. A third example is "Mmmmmmm Bock, is that a gun in your pocket or are you just happy to see me?". The last one was a present to me from my buddy Regi Yifu so you hear his sexy and very dark voice speaking the words.
The best thing about the three examples I have given here are that they are one-liners and last at the most about five seconds, so the interruption in chat is minimal, both with sound and text.
Evil people in SecondLife have spent a lot of time making gestures that last extremely long and fill the screen with jibberish for up to - or sometimes even more - than 100 lines. If such gestures come into the hands of unscrupulous avatars - especially if there is more than one in the room - the result is pure havoc with spam filling your screen. The most notorious gesturbation-lovers in my experience are generally Italians, Germans and Americans (not necessarily in that order). As always you should be careful when reading generalisations because they do not mean that every individual of the mentioned nationalities gesturbates.
Previously the only option has been to block/mute the culprit(s) after you have gotten sick with them, in the Firestorm viewer there is however now an option that, if you activate it, automatically detects and protects you against the gesturbators. You activate it by going to your viewers Preferences and in the Firestorm tab go to the Protection tab and check the box that says "Enable Spam Protection" (see the red arrow in the image below).
In the same place you are also able to choose the options when you wish the spam protection to be activated. There is also an option to immediately protect you from repeat-offenders.