Still occasionally seen on IRC and web-based chat systems that don't maintain a complete chat history.
When you hear or see something squee-worthy and want to scream, yet either embarrassment or immense self-control helps you resist the urge, resulting in a lust-induced drool.
I scrooled her so good, I had to power wash my eyes.
Amazon: Get your hot ass here. I am up for a good scrooling! Now!
Slave: Lick, suck, Glub, Scrool