well-endowed

• hung like a horse
• hung like a bull
• hung like a donkey
• hung like a mule
• hung like a Shetland pony
• hung like a unicorn
• hung like a whale
• hung like an elephant
• hung like Jesus (ahem)

• hung like a (horse)fly
• hung like a mouse
• hung like a pygmy
• hung like a bug
• hung like a baby
• hung like a gerbil
• hung like a hamster

Please /msg me if you have any other potential entries, preferrably ones that are actually in use.