Top definition
When a male or female decides to wear a tight ass bikini/speedo bottom and has pubes sportin out the sides.
R: Dude look at that guys knucklebush! His ass needs to manscape!
M: I hope a seagull doesnt try and dive at it!
by Yourmomspanties February 10, 2013
Get the mug
Get a Knucklebush mug for your guy Manafort.