Sharing the same family as methamphetamine and other highly addictive drugs, internetamine acts by increasing levels of norepinephrine, serotonin, and dopamine in the brain while at the same time drastically reducing physical activity in the user. Commonly found in every American household and spreading throughout the world at an alarming rate.
The mash-up between "internet" and "entertainers" to describe the job of YouTubers Rhett and Link.
Person #1: "Hey, you' ve got to check out theses internetainers"
Person #2: "Who?! What?!"
Person #1: "Amazing people from the internet named Rhett and Link"