How do I explain tumblr?

[Lexee]

Ok so I have a Tumblr (http://aw0rld0fmy0wn.tumblr.com/) and I go on it alot. So the other day my friend asked me why I like Tumblr so much, and I told him it was amazing, and he just says it's a bunch of random pictures. I told him how tumblr works and about fandoms and everything. How would I explain Tumblr in the most amazing way??? I need help because he thinks Tumblr is stupid and that is NOT okay.
So something like this please?
Hey what is Tumblr?
Oh Tumblr is a place filled with..... and.,....

Please help me. ASAP

[Safiul]

You can tell him tumblr is a blogging site and it is also similar of facebook. It's a communication site.

[Stone]

I think this question would make a great post for your blog.

What do you like about posting random pictures after they've been posted on thousands of other tumblrs?

We're having completely different tumblr experiences.
http://stonethegardener.tumblr.com/

What I like about tumblr... is the ability to uniquely design the layout.
I like being able to hashtag my posts where they show up for everybody to easily find... Try doing either of those with FB!

I like being able to click the tags to see the posts that I've posted on that subject from my blog, and then doing it again from the dash to see what other people have posted on that subject... Is often how I find blogs to follow... and I reckon how they find me.

Now...

You tell us...

What specifically appeals to you about tumblr...

Forget your friend... I doubt they're gonna be convinced...