Your dick, specifically a small or plump one.
John Cena's dinker donger got lost in the Vietnam War
by Poop NudeSafety January 27, 2006
1 more definition
well that is true but also a dinker donger is a dick dick that has been slapped by toph
toph slapped my dinker donger yesterday so i fucking jizzed
by bill parcells November 25, 2006