2 definition by MattFurlani

Top Definition
the relative awesomeness of a particular item
"That drink was mack slammin"

"Whoa 7 that shit man, that ass is mack slammin"

"Check out this song man... its mack slammin"
by MattFurlani August 09, 2006

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a almost nervous or anticipated agreement to someone's previous statement
Me: Hey man, wanna get some Dos Equis
The Captain: yeah yeah yeah man
by MattFurlani July 28, 2006

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