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1 definition by als;kdf;laskdfj;l

Reciprocal And Concurrent Oral Sex. Term referring to the simultaneous fellatio and cunnilingus of two sexual partners, also known as 69. Pronounced "Rock Us"
Yo dawg, I was givin' my girl da RACOS. And she was givin it to me, ya dig.
by als;kdf;laskdfj;l April 27, 2011