1. A gay couple having sex.
2. The action of straight people shaking hands.
1.

Gay guy 1: Hey man, wanna lock wood.
Gay guy 2: Sure but I get to go on top
2. 'we made up and locked wood'.
by jockass November 20, 2009
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When you get a boner at your desk and cannot get up.
I totally got wood locked after looking at naked pics of your mom.
by Medfordscum January 31, 2017
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