A temper tantrum. Used widely in the West Midlands in the UK during the 1980s and 1990s to mean someone was having a paddy. Also known as going ballistic, 'having a flid' meant the person was extremely cross. Usually used to refer to parents.
My mum found my cigarettes and had a total flid.
by EmmaH January 29, 2008
A childhood insult, similar in meaning to spaz. Presumably derived from the word thalidomide.
by Anonymous January 30, 2003
It is a Fucking Long island Dick. Usually associated and can be compared to a Masshole. An Egocentric lack of intelligence long islander.
"Why is tommy such a jerk."
"Becuase he is a Flid, he is the type of guy to go to your party, drink your beers and steal the cans to collect the nickel."

by Dan the man 84792 March 04, 2008
acronym for Fuckin Long Island Dick as quoted by the great Alex Ferraris
Yeah, my roomate listens to nsync and owns every piece of abercrombie shit ever made. He's such a FLID
by jahames April 07, 2004
Whats a FLID???? a female lid
Person1 : Whats a Flid
Person2 : A Female Lid
by Guppy21 September 26, 2007
a clear idiot
Jo Wareing
by Ally Barron August 17, 2003
Silly person.
"I am a Flid" - Matt Lee

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