1) Adjective - The ultimate mistake which ends with
disastrous consequences, usually involving multiple parties which were not, directly, involved in
the incident. Usually, it starts with a minor, low level,
bad decision.
2) Noun - A person who commits the "ultimate" mistake.
The introduction of the
Africanized Bee in Brazil in 1957 created consequences that spanned across continents and devastated ecosystems. This is prime example of a "
fuck up of the first order".
The person who actually released
the bees, or setup the conditions where the bees where released, is also nown as a "fuck up of the first order".