noun.
the act of bopping haphazardly around the internet by hitting the "stumble" button on an installed "StumbleUpon.com" toolbar added to your browser--the button will take you to a random site of interest to you (based on preferences you set up before) that you are lead to "stumble upon" because others with similar interests liked it. "Stumbling" the internet is fast becoming an activity as understandable to computer regulars as what simple googling is known to be.
Yeah, ever since Roger downloaded his new SU toolbar, he's off stumbling for hours and tells all his friends googling for fun stuff can't hold a match to the great sites he finds when stumbling.
Used in instant messaging when the other party is too engrossed with stumbleupon to respond.
Joey says:so what have you been up to?
You have just sent a nudge.
Joey says:*stumbleweed*
Abby says:yeah i was on a site about all these people over 100 years old