The phrase "better grip" refers to having a stronger, more secure hold on something. It can mean being able to grasp or control an object with greater ease and confidence due to improved strength, dexterity, or technique. This phrase is often used in relation to physical activities such as holding onto a tool, playing a musical instrument, or performing a sporting move. However, it can also be applied metaphorically to describe having a better understanding of something or being able to manage a situation more effectively.