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2.
A skinny, almost skeleton like girl. Often accompanied by a chon looking sibling.
Look at the Flon walking across the street.
by The smart one two February 24, 2011
 
1.
'Flon' means 'full on' - hardcore, massive etc.

It can also be used as an adjunct in place of, for instance, man, bro, or blud. Man is so yesterday, flon.
Works best with the good alliteration of the flong-meister:
'I flon flashed my flong'
'She's flon flonging it today'

Other common expressions:
'Wo man, flon!'
'He's a flon wanker!'
by Fiona's Lover May 16, 2008
 
3.
flon - to flon someone is too violently anally rape them, and drink their shum fluids.
Tom Fallon Flonned Sean Ashman.
Chris is lonely, and does not get flonned.
by myles derbyshite November 23, 2004