Vulpinate means to play the fox. It comes from the Latin, "vulpes", which is not only the word for "fox", but also the word for "cunning". Vulpinate can have positive and negative connotations. It probably depends on what goal the use of cunning serves.
When designing AdWords strategies, it can be very helpful to vulpinate. Most popular product categories are saturated with sellers and top placement of ads can become highly competitive, as well as extremely costly, especially when the keyphrases targeted are unspecific.
