Room 208

So the default Tumblr theme (Redux) has a nipple CSS class for the little triangle between questions and asker avatars in “ask” posts:

#wrapper #content .post .question .nipple {
    width: 13px;
    height: 7px;
    background: #DCCBE9 url('http://assets.tumblr.com/themes/redux/ask-mask.png');
    position: absolute;
    bottom: -7px;
    left: 30px;
}

Here’s the HTML:

<div class="question">
    <div class="nipple"></div>
    How much wood would a woodchuck <!-- snip -->
</div>
<div class="asker_container">
    <img src="/images/anonymous_avatar_24.gif">
    Anonymous
</div>
<div class="copy">
    <p>Lorem ipsum dolor sit deforestation <!-- snip --></p>
</div>

Cue immature jokes.