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The act of double penetrating a woman by yourself by swapping holes after each thrust. Requires great skill and speed and gives the impression of DP.
"Whoah dude! Did you hear Ben jefferies double dunked nikki the last night?"

"No way! She's always loved a bit of Double-Dunking. No wonder she can't sit down today!!"
by Proteinmonster October 13, 2011
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