Definition of "Kink" :

noun: a difficulty or flaw in a plan or operation

"There are still a few kinks to iron out."

noun: an eccentric idea

noun: a person with unusual sexual tastes

noun: a sharp bend in a line produced when a line having a loop is pulled tight

noun: a painful muscle spasm especially in the neck or back (rick' and wrick' are British)

verb: form a curl, curve, or kink

verb: curl tightly