username
IM slang
usually not someone's real name, but the name the person uses in the chatroom
spamming
instant messaging (IM)
real-time communication over the Internet
flaming
private massage
community chat
a message privately sent to one chatroom participant only, not to the rest of the chatroom participants
online chatroom conversation in which all members participate publicly
netiquette
sending a message to many e-mail addresses of people you don't know
new word phrase in the form of abbreviations invented for faster online communication
chatroom
sending messages meant to hurt someone's feelings
a "virtual" room in which you send messages that appear almost instantly on the device screens of the other people who are participating in the chat or discussion
polite, courteous online behavior