This isn't dick pics - oh no, it's a whole lot better, it's dick slips! That's right, there is a community for everything on Reddit, and if that means that you want to hit up a destination that has images of guys with their cocks slowly peeking out, /r/DickSlips is the place for you. Interestingly enough, as much as you might think this is a small niche destination, the community is currently over 10,000 members strong and has been around for over two years!
In terms of an update schedule, you're going to find that the free flow of content isn't exactly quick. There are around two posts a day and the material hosted here is a mixture of both professional photography (say from rugby games) as well as purposeful 'slips' that give you a bit of a tease from amateurs that use the site.
All in all, not a bad subreddit and one I fully recommend you check out and subscribe to if you want a good daily update of nice dicks on your front page.