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2.
An ignorant way of spelling "laughing". Used by someone who desperately seeks to be hip, cool and modern but in actuality simply flunked fourth grade spelling class.
Laffin at you.
by Beagle2003 October 16, 2011
 
1.
Simply meaning 'it all good', 'sound', originally from Liverpool.
'laffin lad' 'laffin kid' 'laffin mate' 'laffin'
by ARMS March 28, 2005