6911, 69/11, or 6 9/11
the traditional 69, but the girl sticks the dudes penis in between her boobs in an anatomically impossible position.
dude 1: what were you doing on 9/11?
dude 2: 69ing, but she stuck my penis in between her boobs. what do you call that?
dude 1: 6911?
dude 2: nice
dude 1: nice
by horsecuckstorm June 16, 2018
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when two people are 69ing while being fucked in the ass bytwo other people resembling the wtc

my girlfriend and were bored last night so i called up my friend and told him to bring his girl over so we could rock a 69-11
by nealon April 22, 2007
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Sixtynine eleven is the described shape of a love making act between two men giving simultaneous felatio. Two men sixtynining, the eleven is from their penis'. A homosexual version of a sixty nine.
Billy: "What're those two naked guys doing over there? Wrestling around?"

Johnathon: "If they've got each others boners in their mouths, I think you'd call that a 6911!"
by gordtron December 08, 2012
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