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.
by DownAstronomical March 10, 2021
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
Treesh: Okay daddy you can get all the ass you want...
Splez: Ight bet. Uh Huhh Huhhh
by Cex Offender April 13, 2021
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“
Stranger 2 : what do you mean?
Stranger 1 : you know what I meannnn
Both strangers : oooooohhh
“beat the dunnies down“
by Adamwrld69 March 27, 2021
let me beat the dunnies down
by younginsoicy March 08, 2021
by LIN0 March 13, 2021