The phrase "hockey stick" refers to a sports equipment used in the game of hockey. It is a long, curved stick that players use to hit the puck. Full definition
Any manager knows the benefits of hockey stick shaped graphs when the bad things happen 40 or 50 years in the future so you can be safely retired. (climate-skeptic.com)
There is no tariff on hockey sticks, but there are tariffs on other gear like helmets and gloves. (canadianbusiness.com)
They look like hockey sticks because the yearly $ gains become larger and larger, even though the % return is steady, because each year's gains «compound». (retailinvestor.org)