bunching
n.— «Adding more street supervisors might help with bus “bunching,” the term for buses traveling in herds and disregarding the schedule.» —“Funds Sought to Hire More Drivers, Increase Service on In-Demand Routes” by Lena H. Sun Washington Post May 6, 2007. (source: Double-Tongued Dictionary)
Further reading
In the late 1800s, waitresses at the Harvey House chain of restaurants at railroad stops across the American West employed a cup code. One server would ask customers about their preferred beverages, then briskly arrange their cups on the table...
A magnificent new book celebrates the richness and diversity of 450 years of written and spoken English in what is now the United States. It’s called The People’s Tongue, and it’s a sumptuous collection of essays, letters, poems...