People that only go to church on Easter and Christmas.
There was nowhere to sit at mass 'cuz of all the creasters.
by ThatBul January 20, 2005
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One who attends church exactly twice per year, on Easter and Christmas, resulting in overcrowding. Necessitates regular churchgoers to arrive 45 minutes earlier than normal in order to find a parking space and a seat.
Wife: Honey, get the kids ready for church.
Husband: But it's forty five minutes early.
Wife: I know. It's Easter. If we don't leave now, the creasters will get all the good seats.
by Jimsdun March 24, 2008
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Someone who only goes to church on Cristmas and Easter
that boy hasnt been to service all year, he's a creaster
by alexander roelandt June 22, 2005
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