Buggy crapware that is used to send "instant messages" that are queued for several days before being delivered or possibly lost. Also known to crash if more than three people fart at once, and the third tuesday of every month.

(noun) A successful type of theft which results in an acceptable, impressive and rewarding payday for the protagonist.

The worst instant messaging service available on the face of the Earth. Known to drop messages, log-out at random times, and somehow confused with more advanced instant messaging services, such as MSN, AIM, and/or AOL.

Quite possibly the worst instant messaging protocol to be used today (Although not quite as worse as ICQ)

I personally feel sorry for people that use Yahoo... hey the 1990's called, it wants it's messaging protocol back.