Fun Fact July 14, 2021.

Tally ho!  We have the French to thank for this phrase.  Most agree it probably derived from a word the French used to excite the hounds while hunting deer.  It is also used in fox hunting and means the quarry has been spotted.  Sometimes “away” and “behind” are used in place of ho, to give other hunters a reference to where the prey is.  Pilots also use the phrase to let air traffic controllers know they have seen the other aircraft in their area.  If you can’t locate the other aircraft you would say “no joy.”  Across the pond, the Brits use it as a greeting or, less often, a goodbye.  Here in the US it can also mean a large coach or passenger vehicle without a top or sides used for sight seeing.  So, while riding on a Tally Ho, you could yell tally ho to let the other sightseers know where the next sight to be seen is, then say it as you depart the Tally Ho.