kink

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

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

a person with unusual sexual tastes

an eccentric idea

a difficulty or flaw in a plan or operation

A twist or loop in a rope or thread, caused by a spontaneous doubling or winding upon itself; a close loop or curl; a doubling in a cord.

A fit of coughing; also, a convulsive fit of laughter.

curl tightly

form a curl, curve, or kink

To wind into a kink; to knot or twist spontaneously upon itself, as a rope or thread.