What does the rapping term 'screen's falling' mean?
tv screens on your ceiling in your car. when u open them up they fold down therefore they call that screens falling
The original and literal meaning was to commit suicide. These days, to "fall on your sword" means to inflict a serious embarrassment to yourself by clumsiness or incompetence. These days, it is generally used to mean doing something that will have long-term negative consequences. Doing something in the workplace that will get you fired - "career suicide" - is often referred to as "falling on your sword".
Ringknocker is a derisive term for an officer who graduated from a military academy, so called because such officers would draw attention to the themselves by rapping their heavy class rings against a table. The term implies that the officer is overly proud of his/her academic achievements but lacks practical experience.