KINK

[noun] [C] - an unwanted twist or bend in a wire, rope, pipe, etc. that is usually straightThere must be a kink in the pipe which is preventing the water from coming through.She asked her hairdresser to make her hair straight and take out any kinks.See also kink at kinky.(US and ANZ) A kink is also a sore muscle, esp. in the neck or back.Carol had a kink in her neck when she woke up this morning.A kink can also be something that is wrong.Pete is turning into an excellent tennis player, but he still needs to iron out a few kinks in his game.