What one gets when giving a blow job while kneeling on the carpet. The knees get dry/ashy and impressed with the carpet weave pattern. Not as serious as rug burns.
Rom: Hey what did you do for lunch today?
Gina: Just look - I hooked up with Dave and got a serious case of carpet knees!
When a large male/female has massive sweat behind the gooch of their knee
That chubstack has massive cheese knees!!
When a person gains weight to the point fat forms around the knee cap, resulting in an indentation.
"She's gained so much weight, her knee caps turned into knee cups"!
In Nordic/Scandinavian countries, "taking an arrow to the knee" meant that you are getting married/already got married. It refers to when we propose, we fall to one knee, comparing it to when a man gets shot in the leg, he, of course, falls to one knee.
Like most definitions already posted the most popular example comes from Skyrim: "I used to be an adventurer like you, but then I took an arrow to the knee". The guards are married, and can't go out adventurer, not crippled.
To Suck someones penis, while on your knee
yo, she be getting her knees dirty.
Yo she got dirty knees.
Slang from the 1920s. Possibly a corruption of the word business. Another possibility is that it is derived from the expression, "be all end all" a.k.a. "B's and E's" which when said would sound like, "Bees-an-ees". Simply defined as the best, latest, and greatest. (Synonymous with other 1920s slang: The cat's pajamas and the cat's meow. A more current version would be The shit.).
"Johnny got a new car. It's the bees knees.", "Roger is so handsome. He is just the bees knees."
A command issued by a man instructing a slut to get on her knees and give him a nice, long blowjob.
Horny guy: Hey bitch! On your knees!
(slut starts to suck guy's cock)