A sequel, prequel, or any other addition to a series which just doesn't belong. Created solely to squeeze every last cent out of a successful franchise, and often made by someone other than the original creator.
Sam: Remember the Terminator movies, from when we were kids? Those were the days.

Greg: Remember them? They're still making 'em!

Sam: Nope, I'm pretty sure they're not. All that's left now are tack-ons.
by Inertient November 23, 2009
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Often used alongside "Cran," old Denver lingo meaning weak and lame. Also spelled Tact.
Sorry the phone keep disconnecting, this Metro PCS is tacked as fuck!
by MississippiIncenseMan February 14, 2023
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Dude I just hit that Juul 5 times, I’m tacked.
by BE33 October 27, 2018
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Sick fuckin swamp thing who lurks in the shadows and breathes as loud as winter winds.

Often seen around a "Stickley"

Shit dude a wild Tacke has appeared.

Sick.
by Stickmeister April 18, 2009
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North East england name for cannabis resin
sell us some tack
by Steve September 22, 2002
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look at that man's eyes. boy is tacked like no other!
by BigBossMike May 13, 2004
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