This how-to video demonstrates a way of tying a bowline to adjust the snugness of the bowline on your winch or whatever you have tied it to. Tie the bowline as usual. Pull the top of the eye and the bottom of the turn apart then pull on both of the strands exiting the loop to capsize the knot. Then snug it up and reset it. Watch this video knot-tying tutorial and learn how to tie an adjustable bowline knot.