Definition

For example, your connection to a messaging service may have been interrupted as you were conversing with a friend, and when you return, you say, "sorry about that. i got d/c from the app somehow." Or, you were at a pivotal point in a gaming quest, and your WiFi dropped out, prompting you to text your friend, "im so mad. i got d/c from the internet and am trying to get back on."

Origin

slang.net