Generally you are talking about a complicated knot. I tie a bosn's knot and created a jig to tie it. I edited the question to correct the grammar.
Tying the Knot - 2012 was released on: USA: August 2012
Marriage the correct answer
Tying the knot usually means that two people are getting married.
a tying knot for shoe laces on shoes!
A ship can sail with a speed of ten knots. 'Knot' is this case is being used nautically. The Gordion Knot was untied by Alexander the Great by cutting it with his sword. 'Knot' in this case is a jumble of cords or strings.
The cast of Tying the Knot - 2012 includes: Molly Berg as Janet Rex Davison as Robert
Tying Shoelaces
Getting married.
Mansome - 2012 Tying a Knot 2-122 was released on: USA: 20 August 2013
Knot tying is an ancient art which originated due to practical purposes. Grasses and reeds were and still are used to make strings and ropes which then are connected together in an intersection now referred to as a knot, for a variety of practical purposes.
"Typing the knot" does not mean anything (as an expression I mean). "Tying the knot" on the other hand means to get married.
Tying a knot is not difficult and is often done by accident, so a monkey can definitely tie a knot. However, it is highly unlikely that a useful knot will result.