So she asks bodyguard deke and his friend Luc for an education.
1960, ice hockey slang for a quick feinting move, short for decoy. The verb is attested from 1961.
To trick, esp by decoying; FAKE someone OUT: My friend, you deked me. You're not supposed to do that/ deked out all the troopers
[1950s+ Canadian hockey; fr decoy]