The nerd crease happens when a red line on your stomach appears from slouching over a computer desk. This can happen from hours of playing such games as: Minecraft, World Of Warcraft, Runescape, league of legends and various other games.
Oliver: Hey check out my stomach its got a redline on it!
Andy: Woah that looks like a bad case of nerd crease you should stop slouching over your desk Oliver!
Andy: Woah that looks like a bad case of nerd crease you should stop slouching over your desk Oliver!
by justsomeone123 February 2, 2013
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