Very funny. It's referring to a charity, of course, which is extremely well known in the UK (and in Ireland, if Wikipedia is to be believed). Here is the correct Wikipedia page:
The charity is most well known for the phone line that it runs, staffed by volunteers, that anyone can call if they are feeling suicidal or just desperate and need someone to talk to. An ex girlfriend of mine worked as a Samaritans volunteer for a short while. She said that it was very hard work (manning the phones all night and dealing with a fair few prank/abusive callers) and also extremely worthwhile and rewarding.
http://en.wikipedia.org/wiki/Samaritans_(charity)
The charity is most well known for the phone line that it runs, staffed by volunteers, that anyone can call if they are feeling suicidal or just desperate and need someone to talk to. An ex girlfriend of mine worked as a Samaritans volunteer for a short while. She said that it was very hard work (manning the phones all night and dealing with a fair few prank/abusive callers) and also extremely worthwhile and rewarding.