(do you) know/see what I'm saying? idiom
informal (also if you know/see what I'm saying)（用来询问对方是理解或同意，尤其是在未能表述清楚的情况下）你明白我的意思吗？
used to ask if someone understands or agrees with you, especially if you have not expressed yourself very clearly
It's just the best feeling, know what I'm saying? “这是最好的感觉。你明白我的意思吗？”
You have to do the job back-to-front, if you see what I'm saying. “你得从后往前做这项工作。你明白我的意思吗？”