4 o'clock Dickson Share definition Flag When you go home after school and take a giant shit. Greg: "Well I think I'll go home now... time to take a 4 o'clock Dickson!" 4 o'clock Dickson by pussycrack September 23, 2009 0 0 Get merch Get the 4 o'clock Dickson mug. Buy Now — $32.95 See more merch