what does "did not have his or her mouth wired shut" mean

Question

Similarly, a third-party observer might
consider the rudeness unfair and blame the employee for it if that perceiver’s
impressions include the sense that (a) the employee Could have smiled (e.g., 
did not have his or her mouth wired shut), (b) the employee Should have had more
respect for the customer (e.g., by virtue of service-employees’ duly assigned
responsibilities and obligations toward customers in general)

Answer 1

سلام. حدس می‌زنم اصطلاح نباشد، که در این صورت معناش می‌شود عین همان که نوشته: کارمند می‌توانسته است لبخند زده باشد، مگر این که دهان‌اش را با سیم دوخته بوده‌اند، که البته حکم مبالغه دارد.

Comments

دقیقا معنیش همینه. مرسی!