The Venezuelan opposition is broadly divided in two bands, the talibanes (opposition hard-men) who think Chavez is Castro and can only be defeated on the streets, and the come-flores - flower eaters - who believe in peace, love and understanding and think some kind of accomodation with state institutions within the framework of the law is possible.
Many in the Venezuelan opposition - including, admittedly, yours truly - waver between the two positions.
As to the term itself, the image comes from the old children's story: Ferdinand, the bull who refused to fight.