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2.
An open-faced, two palm slap of one's own ass.
"Hulk Smash? FREEMACK SMACK"
by ~ May 28, 2004
 
1.
A subject dubbed the 'Freemack' uses it's palm to smack it's ass for the enjoyment of onlookers.
"Everybody loves the Freemack Smack".
by - May 20, 2004