outdicked yourself

Like outdone yourself in dickishness. Means that you've been a total and utter dick. Not just a normal dick, but a jaw-dropping dick.

Person 1: oh man you fucked that hoe up the ass?
Person 2: shit yeah. Then I came on her face and kicked her to the curb
Person 1: shit bro, you totally outdicked yourself!
Person 2: damn straight dude.