In this quote, Charlotte Church is revealing her absence of knowledge or understanding about the sport of golf. The expression "bugger all" is a slang term that means "absolutely nothing at all" or "very little." By utilizing this expression, Church is stressing the degree of her ignorance about golf. It is possible that she is not interested in the sport or has never had the opportunity to learn about it. This quote likewise suggests that Church is being sincere and simple about her lack of understanding, rather than pretending to understand more than she actually does.
"As a kid, I might have been psycho, I guess, but I used to throw golf balls in the trees and try and somehow make par from them. I thought that was fun"
"Tiger is the greatest thing that's happened to the tour in a long time. He has brought incredible attention to golf at a time of year when football and the World Series always take precedence. Everything I've heard about him seems to be true"
"Golf is fundamentally about being honest. I see people hit eight shots and tell me they shot five. I never say a word. It is a reminder to me of what is at stake"