The act of a man making a 'C' shape with his hand and inserting his thumb in a woman's anus while having sex with her from behind. Often times, the man will move his thumb in and out by flicking his wrist; similar to throttling a motorbike.
"I was porking this bitch last night, you should have been there!!!" - Chris-------"No shit, really?!?!!? Did you throw in a C-Claw?"-Vin
by whitebeast May 4, 2009
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