impostafarian 

A person who smokes weed, listens to reggae (usually just the music of Bob Marley), and claim to be a rasta though they haven't the slightest clue about the actual religion. These people tend to be caucasion, use the term I and I (the speaker and G-d), and use the word Jah (a name for G-d) a lot. Also, impostafarians tend to listen to crappy bands that mix reggae, rap, and rock poorly. Such as Sublime.

Impostafarian: Thank Jah for the herb and Sublime.
Normal Person: Sublime sucks.

impostafarian by Kepley August 26, 2005

impastafarian 

a person, generally caucasian, who likes to listen to reggae while going to college. Their dorm room or apartment (usually paid for by parents) is adorned with Bob Marley posters. Generally, the lifestyle is an excuse to enjoy copious quantities of marijuana.

That impastafarian upstairs needs to turn that crap down, or it won't be just the sheriff getting shot.

impastafarian by Ross Sewage June 30, 2006