I am planning on completing the Intermediate Knots practice and noticed an important detail in the official Bushclass video by Skab I was confused as to specifically which end of the rope was to be formed into a bight and passed through the loop, so I searched for other resources on "slip knot". According to Animated Knots: Slip Knot Noose Knot Using the above source, and looking at other comparable videos, I personally would call the knot he demonstrated as the "Noose Knot" (not the hangman's noose, which is a more complex knot). They are completely different knots which tighten from opposite ends of the rope. One knot forms the bight out of the long or "standing" end and the other forms the bight out of the short or "working" end. According to the website, the word "slipped" is added to a primary knot name when it's modified to be releasable using a tucked in bight. I personally call this a quick release. In the context of Skab's video, the knot he used to form the button was clearly functional and is exactly what I create when using the button technique on tarps, but I'm not so sure about the name he used for it. After studying the differences, I was reminded how important it is understand the terminology you use. It reminded me how my use of the wrong knot and/or incorrectly naming a knot could mean at the very least, losing an item of equipment, but at worse, someone's life could be endangered.