Dude has a comparable quality. Just think of the last time you did something awesome in the presence of a friend who affirmed your awesomeness with the exclamation Duuude! Or the last time you said something objectionable to someone who began setting you straight with a firm and sober Dude. There may not be any obvious difference in denotation between these cases, but the difference in connotation is, you’ll appreciate from experience, pretty major.