a term refering to the stench of ones dick after being in a body of water, such as a river.
Girl: Hey whys that smell so funny?
Guy: No worries, just a case of the river dick. Ill go shower if you want..
Girl: Na i kinda like it...
Guy: Well - ok then...continue.
It's when you go into freazing water and you dick shrivels up...
John and I went to the river and it was so cold i got river dick...