1) A virus contracted from Mexicans, pigs, Mexican pigs, and rich kids who went south of the border for Spring Break.
2) A disease similar to bird flu, SARS, and West Nile, in the sense that it is hyped up by the media to be an epidemic, and turns out only killing a few people.
3) When the police show up unexpectedly to ruin fun. Adapted from pig
, a term for the police.