Definition of "PU"

PU

noun
1. (India) Initialism of Punjab.
noun
plural PUs
1. (computing) Initialism of processing unit.
2. (linguistics) Initialism of prosodic unit. (IU for intonation unit is preferred)
3. (organic chemistry) Initialism of polyurethane.
4. Initialism of power unit.
5. Initialism of penalty unit.
6. (Internet slang) Initialism of pickup. (as in pickup artist)
interjection
1. (slang) Alternative form of P U; expression used when encountering a displeasing smell; exaggerated pronunciation of pew.
  Quotations
  IMO, this stinks. PU.
  1994 February 28, zombie, “Future Images”, in rec.arts.comics.misc‎ (Usenet), retrieved 2022-06-20
  THIS NEWSGROUP STINKSPU
  2000 March 19, [email protected], “PU WHO CUT THE FRIKIN CHEESE?”, in alt.cheese‎ (Usenet), retrieved 2022-06-20
  Phew can mean you are exhausted, hot, and other things which leave you overwhelmed. Pew is a bench you sit on in church. PU means that something stinks. I feel no connection between these words. While Phew *may* mean "what a stink", PU can mean *only* "what a stink". By the way, PU has been around at least since was a young kid 60 years ago.
  2000 February 22, Karl Reinhardt, “How to spell???”, in alt.usage.english‎ (Usenet), retrieved 2022-06-20
  PU? As in Stinks? :^)Sam (Pee Euw) Sands
  2000 October 7, Samuel Sands, “Truck”, in atl.arno‎ (Usenet), retrieved 2022-06-20