1) Evil 2) Omission 
• (p. pr. & vb. n.) of Skip
A method of suing small lures and casting them hard and at a low angle to the water to make them skip, like a flat stone.
a casting method that propels a bait under overhanging cover such as a dock, trees or bushes; the force of the sidearm cast causes the bait to skip over the surface and under the cover
This is a symptom of a worn drivetrain. When a cog (or chainring) gets worn enough, it can't carry the chain properly. So, if you pedal hard when the chain is on that cog, you may experience a sudden and disconcerting lurch in the pedal stroke accompanied by a strange popping sound. What's you're experiencing is the chain riding up and over the tee...