The act of going to Starbucks to indulge in the deliciousness of mass produced coffee. Often an activity you do with a particular friend or person; a tradition.
Person 1: Hey, man, what you up to this evening?
Person 2: You wanna go Starbucksing?
Person 1: For sure, you want to call up {person 3}?
The equivalent of going clubbing,or visiting various nightclubs for entertainment and meeting romantic interests, only for people under the legal drinking age who have too much of a conscience to get a fake I. D. In other words, one goes to the various Starbucks around town and tries to get phone numbers from relatively attractive people.