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It's when a heterosexual guy has to take a bathe in a community shower room. In order to not have the smallest phallus in the room he thinks of something to get some minor blood flow but then stops as to not get a full erection. He will have more than baby dick but less than a halfy.
"I thought he was heterosexual until I saw his soldier saluting! That dude is either gay or he went to far with the shower rodding!"

"Girl, I heard he has the smallest dick on the team. He probably should have been shower rodding after P.E. to protect his reputation."
by big jai jai May 22, 2014