Cyber Wanking, Sex, or engaging in porn via computer or internet. OR stick your dick in a USB port and constantly thrust in and out to sexy and hot computer pictures and other HARDware
Person 1: Did you hear the news yesterday?
Person 2: Yea I heard someone did an Interwank USB
Interwebz points (or interwebs points) are an unofficial currency of internet chatrooms and discussion boards. They don't count for anything, but some folks still "collect" them as a badge of honor. Originally used positively as a means of recognizing another's kindness, may also be used sarcastically to highlight another's status as a noob.
Thanks for the awesomevacation suggestion, TheTopDog, +10 interwebz points for you. ASSMUNCH1337, your suggestion sucked, -1,000 interwebz points for you.