One of a group of usually parallel scratches engraved in bedrock by a glacier or other geological agent.
A glacier must have come through here, look at these striations.
by EssPea January 17, 2005
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Marks that appear from rug burns or clothing burns after dry humping or grinding.
After 2 hours of dry humping him I had all these glacial striations.
by Kryptonite26 November 13, 2009
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