Callback

Aiden Gillen whimpers on his knees, stretching for the first time in years. And finally Sansa sentences him, and Arya swings the sword, or dagger as the case may be. For all the historical callbacks in the episode, and in its old age Game Of Thrones keeps portentously reciting old lines verbatim, this callback is the most resonant. Ned always said the man who passes the sentence should swing the sword. His daughters are finding a different way forward.

Source: wiktionary

For example, multiple callbacks might be made to a nonanswered number to increase the response rate.

Source: wiktionary

Historically, all viable frameworks have always provided a mechanism to implement callbacks. C# goes one step further and encapsulates callbacks into callable objects called delegates.

Source: wiktionary

When the album succeeds, such as on the swaggering, Queen-esque “Nothing’s Gonna Stop Us,” it does so on The Darkness’ own terms—that is, as a random ’80s-cliché generator. But with so many tired, lazy callbacks to its own threadbare catalog (including “Love Is Not The Answer,” a watery echo of the epic “I Believe In A Thing Called Love” from 2003’s Permission To Land), Hot Cakes marks the point where The Darkness has stopped cannibalizing the golden age of stadium rock and simply started cannibalizing itself. And, despite Hawkins’ inveterate crotch-grabbing, there was never that much meat there to begin with.

Source: wiktionary