kink

/ˈkɪŋk/

• Noun
• a tight bend or curl in something (such as a rope or hose)
1. There was a kink in the chain.
• a pain especially in your neck or back that is caused by tight muscles
1. I woke up on the bus with a kink [=crick] in my neck.
• a small problem or flaw
1. We just installed a new computer program, and we're still working/ironing out the kinks. [=trying to fix the problems]

• a strange or unusual part of someone's personality
1. Everyone's personality has a few kinks. [=quirks]