1 a tiny pecker, like a raisin in a sock Expand Bro, your kacknee is smaller than my lunch break.I saw your kacknee and it cried for help.That kacknee looks like it's been through a war. + Examples
2 a fluff ball that tries to be a man Expand Your kacknee is so fluff ball, it’s like a baby’s diaper.That kacknee is so weak, it can’t even stand up.I gave your kacknee a standing ovation… then it fell over. + Examples
3 the reason you’re stuck in the middle of a crowd Expand Your kacknee is why you’re stuck in the middle of the school dance.I can see your kacknee from here, and it’s terrifying.Your kacknee is so big, it’s holding the whole class back. + Examples