The end result of scooping ice cream onto your testicles. The temperature of the frozen ice cream will make your penis so cold and frigid that it will be automatically erect and have a greenish tint to it, much like a cucumber. Often mistaken for its close relative, the "Winter Hulk".
"Me girlfriend's comin' over tonight. Methinks I'll be givin' 'er the ol'
cucumber sundae, arrgh!"
Man: Hey babe, you hungry for a cucumber sundae?
Girlfriend: OM NOM NOM NOM