Top definition
mflac,
M - My
F - Fucking
L - Left
A - Arse
C - Cheek

when you hurt yourself you scream MFLAC and people will like WA??? and you'll be like MFLAC...
Cool new word hitting a street near you
''just hurt MFLAC''
by Flaa89 February 09, 2009
Get the mug
Get a MFLAC mug for your friend Trump.