tarpit

Meanings

1. A lake of asphalt formed when subterranean bitumen leaks to the ground surface. Such pits are important in forming fossil fuel reserves; they are also apt to trap passing animals, which become fossilized in the tar.
2. A service that purposely delays incoming connections in order to reduce the effectiveness of spamming and similar techniques.

1. To delay by means of a tarpit service.

Etymology

From tar + pit.