Dunnies Down 

It means to clap them cheeks, get some ass. Used as a metaphor for Butt cheeks since they resemble dunes, thus you beat the Dunnies Down.

Yo I took your mom home last night and beat her Dunnies Down.

Dunnies Down by DownAstronomical March 10, 2021

Beat the dunnies down

Meaning is hittin it from behind and clappin them cheeks. Gets its name for resembling sand dunes, hence you beat the dunnies down.

Splez: Ayo treesh lemme beat the dunnies down!!!

Treesh: Okay daddy you can get all the ass you want...

Splez: Ight bet. Uh Huhh Huhhh

Beat the dunnies down by Cex Offender April 13, 2021

let me beat the dunnies down 

meaning to have sex with someone

let me beat the dunnies down

let me beat the dunnies down by younginsoicy March 8, 2021

beat the dunnies down

beat the dunnies down

Stranger : man I’ll love to beat her dunnies down respectfully

Stranger 2 : what do you mean?
Stranger 1 : you know what I meannnn

Both strangers : oooooohhh
“beat the dunnies down“

beat the dunnies down by Adamwrld69 March 26, 2021

Lemme beat em dunnies down 

To get down wit someone

“Ayo treesh lemme beat em dunnies down”
“You can beat em”

Lemme beat em dunnies down by LIN0 March 13, 2021