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1.
A straight-ahead bike lane striped on the curbside of a turn lane, so that turning vehicles have to turn across the bike lane.
Cyclists using that 'coffin corner' bike lane are likely to get hooked by any cars turning right.
by BeeryUSA August 01, 2012
 
2.
The art of pulling your girlfriend to the corner of the bed during the tail part of intercourse in order to gain leverage on her g-spot to make her cum.
Debbie: So, how was he last night?
Anna: He was so amazing, he even performed the coffin corner for me. It was splendid
Debbie: Wow! He must really like you! What a gentlemen!
by Hornbeezythabest November 03, 2009