Noun. Something offbeat, unconventional or unexpected. Generally considered with positive implications. (Origin: X Files wordfanfic author Livia Balaban)
Verb. To shock or surprise someone with something offbeat, unconventional or unexpected.
"Did you read that William/Tooms slash fic? Balabam!"
"I started to read that story about Skinner and that hot chick, but it turned out she was a Mulder clone. Dude, I totally got Balabammed."
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.