A wrong, sour, or otherwise harsh-sounding note played on a musical instrument, especially a brass instrument.
Check to see that you don't have a worn valve in your trumpet. I'm starting to hear a lot of blats.
by pentozali November 16, 2005
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Bl-AT -

1. *BARF*
2. SOUND EFFECT MADE WITH MOUTH INDICATING AK SPRAYING, USUALLY IN STREET HIPHOP SONGS.. BLLLLLAT
1. look at that dirty piece of poop; bl-at
2. buck buck blllaaaaat
by RANDY [BLUR] ROBBINS February 04, 2004
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no 'call waiting!!'

in ancient times when one were 'desperate' to get hold of someone, there existed a torture some indicator someone was using the phone, (or had it off the 'hook' to 'duck' your ass!!) called a 'BUSY SIGNAL' (or 'reorder tone")

this busy signal still exists to this day! among all the modern technology that does everything but 'take you off'. it could truly be maddening if one were 'desperate' to get through to someone. ('hungry' teens, emergencies, etc!)

seems pretty antique to me, why not disco music or something? -at least the ABILITY to 'dump' the blatting!!
i guess call waiting is where we're 'railroaded' to now!!
did you get through to wendy yet? fuck no, all i got was the blatting, and her mobile is off!!...-shit, man-fuucck!

needed to 'get off', tried to call my 'infant', but all i got was the blatting!!!
by michael foolsley May 07, 2011
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A term originally used when playing hacky sack, or footbag. It occurs when one player deliberatly powers the hacky at another player in the hope that they will lose control.
*The hacky hits Jon in the balls*
"Hahaha, that was a sick blat!"
by Nialbm June 23, 2006
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a roadtrip in your car that has no set destination or purpose, the only reason you go on one is for the pure excitement of driving.
Stuart: Lets go on a Blats matey
Leonard: Lets not stuart as your the one driving i will not get blats out of it
Stuart: -sucks teeth- HayHo
by Blats True Meaning December 11, 2005
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Rush somewhere on a mission - opposite of bimble. Traveller/protest camp usage, 1990s or earlier.
We spent the afteroon bimbling about town, then we blatted over to Fairmile, 'cos we'd heard the baliliffs were coming...
by Laptop December 01, 2003
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