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1.
sex position that involves the penitration of the asshole with a lightbulb during the sexual intercourse with a gaggle of silverback apes
jonnie onufrak set the record for getting light bulbed in one hour. 903458403853853080945times(wow)
by Jonnie Onufrak June 17, 2008
 
2.
had a revelation; realized the truth/gospel/whatever; saw the light; noticed... etc.
John was struggling with his english homework when he lightbulbed on a hidden symbol.
by epeca May 20, 2009