Friend-hopping is when your on myspace, and your too lazy to look up a friends profile, or you have to many to filter through them, so you click on one of your top friends who has the person you want on their top friends
I was too lazy to look up Kaela's myspace, so i began Friend-hopping to Luke's page to get to hers
Adding one or two friends on Facebook from a certain group of friends so that you can look at all of their friends for more people you may know.
Prima: Dude, you got 45 new friends in one day! How did you do it?
Secunda: I went friend-hopping last night.