look up any word, like blumpkin:
 
2.
A pimp that hails from the tropics ie: Hawaii,Polynesia,Easter Island.
Main that nigga just walked in club and cold stole all our bitches,that fool must be on some Macadamia shit.
by Tampoon X September 12, 2003
 
1.
The state of blissful insanity, an spectrum of behaviors characterized by certain abnormal mental or behavioral patterns. It is named after a nut.
Janice just went all Macadamia.
by Mikekal July 19, 2009