I came up with this one myself; it is a reference to a sequence in the 1982 movie 'Blade Runner', where Deckard (Harrison Ford) pursues and guns down the 'Zhora' replicant (Joanna Cassidy).
"Whoa, did you see that cop? He just pulled a Deckard!!"
BUT it may not be used in future tense.
This is a fun one to use when watching other action films; it may also be used if a knife is thrown into someone's back, rather than them having been shot.