when a guy has a huge penis and is so big it can't stand up so it hangs out from the guys body like a horse's penis does
yo i saw marc's cock and he's definatly horse hung
by brian January 21, 2004
Get the horse hung mug.
I was bad last night. I got tipsy and next thing you know I got myself involved with this one night stand. The problem was he ended up being so horse hung that today I can barely move.

penis well-endowed
by TheBigCanucklehead March 14, 2015
Get the horse hung mug.
An extraordinarily large flaccid dick
Red is horse hung, his flaccid dick is bigger than Nick's hard one
by mackenziesvirginity July 24, 2022
Get the Horse Hung mug.