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An erection caused by obssesive use, or excitement of Nintendo games, consoles, videos, or just anything about Nintendo.

Man, when he finally got Smash Bros. Brawl back home he got a HUGE Nintenrection.

That guy played Mario Galaxy for a whole 5 hours! He had a Nintenrection the whole time!

Nintendo geek is so excited about getting Mario Kart Wii it's causing him to getting sudden Nintenrections every time someone even mentions it.

by ChucklesMginty April 06, 2008