In June 1917, the California Olive Association adopted the following rather terrifying size designations:

Olives counting 120-135 olives per pound: Standard
Olives counting 105-120 olives per pound: Medium
Olives counting 90-105 olives per pound: Large
Olives counting 75-90 olives per pound: Extra Large
Olives counting 65-75 olives per pound: Mammoth
Olives counting 55-65 olives per pound: Colossal
Olives counting 45-55 olives per pound: Giant

Over the years they added Jumbo, Supercolossal, and Special Supercolossal. It wasn’t until the the 1970s that the government stepped in to limit further growth: “The Department of Agriculture feels that most people would not be able to figure out which are the larger olives, except at the range of smaller sizes, whose names are the more straightforward.”

While we’re at it — champagne bottles have some impressive names of their own:

0.1875 liters: Piccolo
0.2 liters: Quarter
0.375 liters: Demi
0.75 liters: Standard
1.5 liters: Magnum
3 liters: Jéroboam
4.5 liters: Réhoboam
6 liters: Methusaleh
9 liters: Salmanazar
12 liters: Balthazar
15 liters: Nebuchadnezzar
18 liters: Solomon
26.25 liters: Sovereign
27 liters: Primat
30 liters: Melchizedek

(Thanks, Drew.)