One might use the word quack, at high school, to alarm friends that a teacher is approaching and they should stop doing whatever it os they're doing wrong.
If a friend is smoking or on their phone, say 'Quack,' to casually tell them a teacher is approaching.
by do dogsarecool September 24, 2017

by just mango February 22, 2022

• The act of running your nose up your partners butt crack while they dry hump a well downed pillow
• The act of holding a recently deceased goose by the neck, creating a seal with your mouth over their beak, and blowing hard enough to push their stomach contents out of their rear end to facilitate the butchering process
• The act of holding a recently deceased goose by the neck, creating a seal with your mouth over their beak, and blowing hard enough to push their stomach contents out of their rear end to facilitate the butchering process
"He really gave her the reverse quack?" "Yea, funny enough she works at the slaughter house a reverse quacked a bunch of geese earlier!"
by Mr.Ducksworth July 16, 2023

by Slender Cinamon October 31, 2018

Ginge: *sends meme*
Demb: ...
Ginge: ...
Demb: steals
Parrot: Indomie?!?!?!
Aaron: *sends uk rap*
Red: Hi guys I said hi
Crit: among us
Dis is duck quacks dont echo
Demb: ...
Ginge: ...
Demb: steals
Parrot: Indomie?!?!?!
Aaron: *sends uk rap*
Red: Hi guys I said hi
Crit: among us
Dis is duck quacks dont echo
by ZeroTheImpostor September 29, 2020

by .,.,.,.,..,,. November 21, 2020

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
