Its is someone who takes me micky of people's posts.
mamjet/tetjam pooplung and ones with cancer in the name are popular ones.
Althought I feel like one myself tonight.
I'm sure other people could give better definitions however.
ChocolatChip... "frit" is a Lincolnshire expression for "frightened". It was once used by Margaret Thatcher to describe Neil Kinnock in the House of Commons in 1988.