Informal.| 1. | to move back and forth or transfer rapidly from one locale, job, etc., to another; switch: The patient was ping-ponged from one medical specialist to another. |
| 2. | to go back and forth; change rapidly or regularly; shift; bounce: For ten years the foreign correspondent ping-ponged between London and Paris. |

ping-pong architecture
A phenomenon which can occur in a multi-processor system with private caches where two processors are alternately caching a shared location. Each time one writes to it, it invalidates the other's copy.
(1995-12-29)