NOTE: a tumblr girl can be either a boy or a girl, but the term itself remains the same regardless. A 'Tumblr girl' is a person who wants to build their ego by taking pictures of themselves in which in modern day "mainstream" fashion. They are very usually popular, commonly annoying, and they conceive to their-selves with the word "swag". Posting it onto whatever social website they want, and sharing it plenty of times. She also writes in all lowercase letters.
Jenny. Age: 22.
Although you may not see it, she is finding some quote that doesn't make sense but seems hipster so she's putting it there anyways.
Pearl. Age: 26.
See, that’s what the app is perfect for.
You may see her cropping these pictures and typing into her computer. Oh yea, and they write in all lowercase. They like vintage clothes by the way.