downtown blow-down
during oral sex, the act of a woman putting her lips on her partners testicles and motor-boating them. (gently smacking her forehead with your penis is optional)
1st guy: damn, that Aubrey chick gave me another downtown blow-down last night.
2nd guy: wow, it sound like she's in the fuckin' zone lately.
2nd guy: wow, it sound like she's in the fuckin' zone lately.