Re:Ask HN: Founders, what is the worst experience you had wi...
by lewisflude on Monday October 22, 2018 @09:51AM
(#18274613)
I agree (born and live in London). I've never heard P45 used as slang, maybe you could use "given a P45" to suggest someone was fired though.
Its slang because P45 has nothing directly to do with being fired. It is a tax document related to changing employment.