no knees Share definition Flag It's where after you have some really good sex you can't really walk right. it feels like your legs are jello so it's like you don't have any knees. "After i get through wit you boy you won't have any knees for a week!" no knees by Whitley May 12, 2004 0 0 Get merch Get the no knees mug. Buy Now — $32.95 See more merch