Can I call on the resident expert to help me with a rope question. I'm a complete novice...

I made an eye splice, and I whipped the splice using the method I found in a Youtube video -- probably the easiest method. I swung the rope energetically for 10 minutes like it's a jump rope, gripping it by the eye splice. The whipping came loose. I realize this is an elementary question for a master like you, but can you recommend a more secure method for whipping the rope?