Pulling in old characters/concepts and ideas from classic movies/tv shows and putting them into new media to sucker in their fans and to make them believe something is "good" because the familiar is there.
Person 1: Wow, Star Wars Rogue One is so good. I clapped and cheered when Darth Vader showed up. R2 D2 and C3po also appeared and therefor this is good Star Wars Content.
Person 2: I can't believe you fell for the Nostalgia Bait.
n. a term used to describe any driver traveling at a higher rate of speed than you while you are driveng faster than the speed limit. In doing so the other driver is protecting you from a speeding ticket by taking it upon him/herself.
Sally: Honey, slow down! you're doing 70 in a 55!
Tom: Don't worry with that Pig Bait up ahead the fuzz will have their hands full. Thank you Pig Bait.