Top Definition
upon youtube trolling, a user will notice the sidebar of suggested videos, when an unsuspecting victim clicks what turns out to be a very terrible video and repeated incidents of these videos may lead to sidebar-nightmare .
for example, an unsuspecting user is watching whale videos videos and youtube suggests "cindy salsa". the user clicks and is lead to a horrific video. this user will now suffer from sidebar-nightmare
by softballguy June 25, 2013
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