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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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 17, 2009
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Being added to slack/discord/teams channels against your will. A modern play on the word "attacked".
I was @tacked the other day when a sev1 came up, wasn't even my job!
by Tigwyk September 24, 2019
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any thing tacky. usually found in Florida gift shops, especially on the side of the highway. usually includes dogs dressed as people or ornamental plates.also includes "folk art" made from seashells and those ugly bracelets that come with your name on them (if you can find your name.)
person 1: I bought this tapestry kittens on it, they're wearing hats isn't that cute?

person 2: where do you keep finding all this tack?
by tuveuxvoir? July 07, 2009
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