The name of the kid in toy advertisements from the 1990s. Usually featured wearing oakley sunglasses for kids, baggy, layered clothing, and some kind of hair gel in his freshly L'oreal kids laundered hair. Zack spends his day playing with his beyblades and legos, enjoying pizza bagels and Flavor-Blasted goldfish paired with a cocktail of kool-aid, capri-sun, and sunny-D.
Person 1: Hey, do you remember when lego's mascot was just a child that liked purchasing lego products?

Person 2: Oh, you mean Zack? I heard he died of nostalgia a couple years back.

Person 1: I guess that's what happens when you peak at 10 years old.
by ouid January 13, 2019
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A guy that loves it in the bum and often forgets wipe his ass after a poop

#zack #ass #silly
by jageiuwjaywgabt September 29, 2019
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Zack is guy with a small penis and who disses crippled people for attention. He's a a big asshole.
Guy 1: Yo do you know that guy named Zack?
Guy 2: Man, he's so cool, I wana be like him.
Guy 1: I was going to say he's a big asshole.
by That perosn who exist March 3, 2020
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A dumbass way to spell Zach.
Dude: hey you talk to Zach lately?
Other dude: you mean Zack?
Dude: no you dumbass.
by Bigtuna48 March 1, 2021
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Fake version of Zach, parents were on drugs naming this man because he is fake, only real Zach’s know, be aware
Person 1: You know Zack?
Person 2: Naw that kid fake he spells his name with a K
by A real Zach December 17, 2018
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