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Meaning groovy, cool, awesome, etc.
Joe: "Hey did you hear about that new fruit blender that came out on Sunday?"

Graham: "Yeah man! It's the cat's pyjamas!"
by theboysarebackintown March 18, 2010

Words related to cat's pyjamas

bee's knees awesome
awesome, great, cool; 1920s slang.
"That dress is the catspyjamas!"
by Kathy Selden September 26, 2011
This band is awesome. apart from the singer/drummer/guitarist. Although the bassist really keeps the band going.
"Man the cats pyjamas are awesome" - as said by my mum
by Josh ware December 12, 2007