Sink Dink Share definition Flag The act of washing ones penis in a sink after intercourse because of the inability to shower before the next encounter. After I fucked that hooker yesterday I had to give my wife the Sink Dink when I got home. Sink Dink by TIII February 4, 2009 0 0 Get merch Get the Sink Dink mug. Buy Now — $32.95 See more merch