In America and most of the world, "pissed" is a
vulgar term
denoting anger and frustration. Sometimes the word is followed by "off" to mean the same thing. In Great Britain and
Ireland the word "pissed" means "drunk" or "intoxicated" and is generally not considered vulgar.
Example:
When I saw the Beatles Anthology miniseries on TV, occasionally the Beatles and/or other people would say a swear word and it would be bleeped, because this program was broadcast on network TV (on ABC, in the spirit of the Anthology the network hyped itself as "Ay-Beatle-Cee". Uh-huh.). George Harrison was talking about the group being on the Magical
Mystery bus travelling to promote the "
Magical Mystery Tour". Pub patrons would stand outside and wave at the Fab Four, George said that they were "pissed". That word was not
bleeped out. Knowing that people outside the UK and Ireland would be watching this program, George explained the term's definition by stating, "Oh. Getting pissed is the same as getting plastered".