When saying "blah" to someone, means you're not really listening and you don't care what they have to say to you. especially if it's something really important.
For example:
Sally: Did you watch those aliens attack our planet yesterday?
Fred: Blah
Sally: You are a bad pinecone
Sally: Did you watch those aliens attack our planet yesterday?
Fred: Blah
Sally: You are a bad pinecone
by DuckieGal155 October 25, 2008

by Edrianna February 23, 2008

Among other things, this word relates to Captain Sensible's political party. He began it as a protest that elected officials do not represent the masses and to give non-voting people an option to vote as a protest rather than avoid voting as a protest.
Disenfranchised Voter #1: I feel really BLAH about all those lying politicans and I don't feel any of them represent me so I'm not voting for any of them.
Disenfranchised Voter #2: I know what you mean--you should consider Captain Sensible's BLAH party.
Check out the Captain's own information on it at myspace.com under "thecaptainsensible"
Disenfranchised Voter #2: I know what you mean--you should consider Captain Sensible's BLAH party.
Check out the Captain's own information on it at myspace.com under "thecaptainsensible"
by The Ripper December 14, 2008

"Omg-osh yesterday was boring"...an hour later w/ nothing said "blah" OR "Hay Sam! blah" sam: "Blah" george "BLah" "BLAh" "BLAH" sam: "BlAh" george "bLaH" sam "bLAh" george "blAH" sam: "fine you win the blah war!" george "yay, now thats some uber pwnage right there!"
by Jamie Nickole Yandle...a.k.a Rabbit April 17, 2007

1. a word i just typed in the look up box
2. also a word that people use when they have nothing else to say
2. also a word that people use when they have nothing else to say
by lol2myself May 13, 2009

by justineee February 1, 2009
