"I don't know, I never smoked AstroTurf"

Tug McGraw's quote is a funny way of revealing his lack of understanding on a certain subject. He is suggesting that he has never ever had any experience with the topic, and for that reason can not offer an answer. The quote is likewise a play on words, as AstroTurf is a brand name of artificial grass, and smoking cigarettes is an activity generally related to cigarettes. By stating he has actually never smoked AstroTurf, he is implying that he has never ever had any experience with the topic. The quote is a funny way of expressing his absence of understanding on the topic. It is also a reminder that we ought to not presume that somebody has understanding on a certain topic even if they are well-known or have a lot of experience in other areas. Everybody has their own distinct experiences and understanding, and it is necessary to regard that.