Good reading! I learned more meaning of word "hang up"

The one I know:
hang up on ***** - end a phone conversation with *****.
"How dare you hang up on me?"

Here hang-up as noun refers to some problem, emotional difficulty.
"She's got a real hang-up about her appearance."

says - /sez/, when say + s, ay is no longer /ei/ sound. It changes to /e/