A certain time when one lays in bed and stare at the ceiling while thinking about whether he exists or not and about the world and existence in general.

Those moments are highly complex and usually scare the one who's having them.
john: dude where have you been last night?
Eddy: ohman, I had a ceiling moment, it was a big one
john: didn't get much sleep huh?
Eddy: nope, I just thought for hours
by booboogaga October 31, 2009
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