When you are unable to date/hookup/start relationships with someone so you resort to doing what was intended with them with their siblings or cousins instead.
“Yo, sucks that Ella won’t date you”
“That’s fine bro, I can always date her sister Carrie”
“You be pulling one of them same DNA same P in A’s!
“Same DNA, same P in A!”
Dating someone's sibling because you cannot date them for various reasons
"Bro, you can't date Sarah"
"That's fine, I'll just date her sister"
"Same DNA, same P in A! Next best thing!"
when you're nose bleeds a lot (from being cracked out, or drunk, or whatever), and you wipe it off with the backs of all your fingers.
Wow, you have the ten set of DNA stripes! What the hell did you do last night?!
mixing dna in sexual terms means to have sex.
Jay - im bored you tryna mix DNA?
selena - sure.
*mixing DNA meaning they had sex*