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Used in online forums. Shorthand for "In before the lock." When material is posted that is frowned upon by the moderators of the forum, they may lock the thread. Some people think it's "kewl" to get in a few words before the thread is locked.
D00d, this racist ish is gonna get l0xored!

nb4dalock!!
by Spongebob June 11, 2004
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