The lariat knot, also known as the NOOSE, is a type of knot used to form a loop on the end of a rope. It is most commonly used in lassoing and is formed by tying a simple overhand knot at the end of a rope, then passing the working end around the standing part and back through the loop. The lariat knot is a secure knot that can be easily untied even after being subjected to a great deal of strain.