Young Ethan: All right, look. I've gotta tell you something. I'm not 17. I only said so that you'd think I was cute and vunerable. I'm actually 30, I have a wife, I have a job, I'm your Congressman. Monica, this is ridiculous, we're great together. We can talk, we make each other laugh, and the sex. Oh, man, okay i have no frame of graft, but I thought that was great.
Monica: It was.
Young Ethan: Then, what's the problem?
Monica: Ethan, it's um... it's icky.
Taken from the sitcom Friends season 1 episode 22, it's hard for me to understand the meaning of "no frame of graft" in this context.
After searching through the internet, I figured it might not be an idiom or slang.
Anyone share their interpretation with me?