Girl1: *wears skirt slightly above the knee*
Boy1: *no consideration for Girl1’s knees*
Professor: Girl1, your skirt’s too high!
Girl1: Nobody seems to care about that other than you!
Girl2: Fucking creep.
Lewis: Ahhhh mate, check thatbird out at the bar Sammy: Shes pretty Knees mate
Groom: Yup, Knees
Paul: Knees, Knees
Dave: What? Nahh, she'll turn me down
Knees is a term for someone who is lower than a cunt. Basically the an extreme insult for someone whose actions and/or words deserve a harsher derogatory term (i.e someone who is worse than a cunt)
Jeff: Not only did Ron make fun of Hanks dead mother, but he killed Hanks dog and raped his sister!
Carl: What a cunt!
Jeff: No. He's lower than a cunt. He's knees.