Mine sure isn't!
Well, I am just an envier and not an owner of a big cock. I am a pretty thin built guy. My wrists are only 6" around, and my cock isn't anywhere close. It's only 4 3/8" around. I think it's what many women would call a pencil dick or needle prick.
But I certainly love the look, feel and power of a thick penis, and love to see guys that are as thick as my wrist!