Ufficio Perizie Ambientali (UPA) is a madeup institute invented by some dumb students at the University of Lausanne (Switzerland). The headquarters are on the 3rd floor of a building in the aforementioned university, in office 6969 (which, of course, doesn't exist).
The word is now used by many students, meaning "a place you go in order to study or do school stuff".
If u are tying to tell someone somethingimportant you must say (especially if he is or posses a naitan) you say listen upa here aNAITAN in a slightly asian accent, but you must grunt the naitan.
Naitan: d00d h4l0 is t3h r0x0rz its b3tt3r th4n g34rs
Me: Listen upa here aNAITAN, gears requires aim and halo just requires fast reflexes!