semaphoring

Verb

semaphore (third-person singular simple present semaphores, present participle semaphoring, simple past and past participle semaphored)

1. (ambitransitive, figuratively) To signal using, or as if using, a semaphore, with the implication that it is done nonverbally.
   • The person intending to Semaphore will make the International Code Signal VOX (I am going to Semaphore to you), and set his Semaphore at the alphabetical sign [...] with the Indicator out, and wait until the person to whom the Semaphore signal is to be made hoists his answering pennant close up....1907, United States Hydrographic Office, “Distant Signals”, in International Code of Signals, American edition, Washington, D.C.: Government Printing Office, →OCLC, part III, page 539

See all 4 meanings of semaphore