An internet connection that once was the standard way to connect to the internet. Eventually, it was outmoded by DSL and other High-Speed connections. In many places, people are still unable to connect to high-speed internet and are forced to suffer in the hell that is slow downloads, unstable connections, and in some cases AOL.
"100 megs? I'm on dialup, that'll take hours!"
"Quit being a cheap pussy and get a real connection!"
"But I like AOL..."
"I'm never talking to you again."