Jerking your penis off.
You can stroke, grope, pull and get it as pumped as you please, but you ain't getting it any bigger than what it's meant to be.
Just something I realized: It really is like a form of masturbation; being pumped is like having a woody and being 'cold' is like being shriveled and flaccid. Maybe that's why a lot of smaller guys hide themselves in big clothes lol. In a way we lift weights so we can be as virile as a big stiff one - almost as if we are making ourselves into a sumptuous boner with every rep. There's something Freudian about it ...
That's the way I feel anyway ...