To be 'quacked' is to see (or more likely shown) a video of a good beautiful girl but at the last second it turns out she has a penis. The reveal is usually accompanied with a cartoonish duck's quack, hence 'quacked'.
My bro showed me this video of this smoking hot chick and I was like "ooooweee!" But then she turned around and there was a big ol' cock n balls. Dude quacked me!
by RosscoTheDestroyer January 9, 2021

by Lorna Black July 3, 2023

When a large balled man is seated, farts, and then proceeds to stand, thus releasing the trapped toot only to feel it briskly escape to the side of his massive testicles.
by 77NaughtyDaddysGirl92 September 4, 2023

by The prankster July 20, 2021

by Heroesindahaus January 31, 2019

A more simpler and more generalization of the term is when someone starts explaining the formula of e equals mc squared, when nobody even asked for it and/or cares. Basically someone who never shuts up about anything medical, technological, biological, historical, logical, how great a movie is, how great a game is, why someone is so cool, alright alright, you get the point.
Major Zero: She was originally named Quack.
Naked Snake: Because she never shuts up.
Major Zero: Yes, that's exactly it.
Paramedic: No it's not. Snake tell him.
Naked Snake: ...Gotta go.
Naked Snake: Because she never shuts up.
Major Zero: Yes, that's exactly it.
Paramedic: No it's not. Snake tell him.
Naked Snake: ...Gotta go.
by bumerhoomorr34 May 9, 2021

- a sound that the duck does.
- slang word for a strong bond two people made in a short amount of time.
- slang word for a strong bond two people made in a short amount of time.
by souuu July 30, 2017
