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15.
Any person whome engages in the act of smoking methamphetamine, particularly one whome is addicted and/or binges.
A: That dude blows through a gramme of tweak a day.
B: Damn! Like a true missionary.
A: For real...
by fish fish fish October 15, 2007
 
16.
The Christian term instead of using the word "pimp" to use to say that someone or something is cool
"dude you are sucha missionary!"
"oh man, these new shoes are soo missionary"
by Keatz January 24, 2005