After you have a quick session of anal sex with either a female or male, prefferably with female, and when you take out your whang from her butthole, you have a hard casing of poop on your dick
"I fucking just knocked my girlfriend up the ass, but when I took it out i had a fucking 'Hong-Long'"
by Bill Kenny May 28, 2004
Get a Hong-Long mug for your cat Paul.
Noun. An asian person of any asian country with an penis longer than what stereotypes make us expect. A long penis belonging to an asian person
Woah, have seen Chang's dick? He's totally a Hong Kong Long Dong
by ChineseChecker January 10, 2014
Get a hong kong long dong mug for your grandma Sarah.