Top Definition
A way of saying great, awesome, epic, or anything along those lines
Jim: So , how was your day?
John: Pretty famacious

Jim: Look at my cool new shirt!
John: Pretty famacious dude!
#synonyms: awesome #great #cool #antonyms: bad #weird #misspellings: famashus #famashious #fimacious
by mrsbieber1998 September 25, 2011
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