Textually Transmitted Disease
When you’re on an instant messaging program, and you copy and paste something someone else has instant messaged, and you end up getting their font style.

“Oh noes! I copied what you said on AIM and you gave me a textually transmitted disease!”

Textpectation
The anticipation one feels when waiting for a response to a text message.

“I just texted her for a date – but now the textpectation is killing me.”

Mouse Potato
Someone who spends all their time on the computer surfing the net or playing games.

“You spent seven hours on the internet creating meanings for words on urban dictionary? Wow, You’re such a mouse potato.”