stack of nickels 

the shrunken state of the penis after existing a cold swimming pool

Dude, I can't go skinny dipping with those girls. They might laugh at my stack of nickels.

stack of nickels by Peeper1818 February 9, 2010

short stack of nickels 

A reference to the size of the male weener when it is extremely flaccid, and somewhat exposed. Most often accompanied by tighy whities, a t-shirt, spandex, a wetsuit or similar.

When my friend got out of the lake in a wetsuit, it was as though someone had placed a short stack of nickels in the area where his his genetalia should be. Everyone was made aware of this, and laughed histerically.

short stack of nickels by the anti twitter July 3, 2010

Sack of Hot Nickels 

Ugly, fugly, busted

Damn! She looks like she got hit in the face with a sack of hot nickels

Sack of Hot Nickels by Keddin November 17, 2003