A middle aged man overly obsessed with Canada and has delusions of grandeur regarding BJJ
OMG guys Canada is so cool!

BJJ rocks man Killen knows it!
by Daniel Short June 12, 2012
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To die on your ass on stage due to your complete lack of musical talent and inability to recognise that the audience have had enough.
Did you see that support act last night? They were out of tune and were on for ages, they were so killens we didn't even stay to watch the main act.
by hamperdoonback September 08, 2010
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Smokes and sniffs only the best ket fresh from Glasto. Can often be spotted in art or in Magaluf with the lads doing a cheeky line before he flies back to mold a clay statue on some more ket
Student "I wonder where our teacher is?"
Student 2 "Ahh Matthew Killen he's probs in either Magaluf or Kavos with the lads he'll be back soon"
by Agatha Webb February 25, 2019
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When the water is so cold it's "Killen" you
"Oh yeah, that's Killen cold!"
by Jsg520 August 13, 2017
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