CIP

An acronym used on eBay and other auction sites to mean that an order is completed and shipped only if the buyer first makes the payment.

CIP is a quick way to ask someone to send information to their cell phone, such as the location of a meeting place or contact information. For example, a person may send "CIP" in reaction to a person suggesting a restaurant to go to get them to message them the deets.

While CIP was more common in the 2000s, it is relatively obscure now since messaging occurs via many different devices. Also, with the rapid decline of landline telephones, most people refer to cell phones as "phones" (or "mobile phones" or "smartphones").