Definitions by cookiesn'cream

tumblr girlfriend 

A girl on Tumblr who is associated with you (willingly--- both of you agreed on this relationship) online. You might not even know each other in real life.

Bob's latest Tumblr post says, "I'm following everyone back 100% until I find a Tumblr girlfriend.

tumblr girlfriend by cookiesn'cream September 2, 2013