The name fans have given to the not-so-canon gay relationship between Carlton Lassiter and Shawn Spencer from the USA show Psych.
Fangirl A: OMG did you see the latest episode of Psych?!

Fangirl B: I know! There was so much Shassy subtext!
by bellamai March 21, 2009
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A ship from the USA show Psych. Relationship between Shawn Spencer and Detective Carlton "Lassie" Lassiter.
I didn't ship Shassie at first, but after watching Lassie Did a Bad, Bad Thing, I'm starting to.
by chopwood December 23, 2013
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A sexy looking BBQ that the boys can have a late night beer sesh with
Damn bro, let's use your shassis before we go out clubbing
by SnoofyTheLad July 17, 2021
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