Pogo oscillation, a dangerous condition where fluctuations in the thrust and acceleration produced by a rocket engine generate variations in the flow of fuel to the engine, amplifying the fluctuations of thrust and acceleration in a positive feedback cycle that can eventually tear the vehicle apart.
"The carnival vendor handed me a hot pogo to eat while waiting in line."
A corndog on a stick.
In plain English: A pogo is an old-fashioned slang term for someone who acts silly, foolishly optimistic, or blindly enthusiastic about something that isn't going to work out well.
"The pogo stick bounced him high into the air with every spring."
Usage: This term refers specifically to an unstable vibration caused by feedback between a rocket's exhaust plume and its nozzle. It is not used for general bouncing or jumping motions.
To use a pogo stick.
"The children gathered in the park to watch their friends jump high on pogo sticks."
Abbreviation of Pokémon Go.
"She spent her entire weekend pogo in the park to catch rare monsters."
The word "pogo" comes directly from the noun phrase "pogo stick." It entered English as a shortened form to describe the bouncing dance or game associated with that specific piece of equipment.