2 definitions by Your friendly neighborhood dog

When on an average night one attractive girl posts an Instagram picture and it leads to a chain reaction of girls posting hot Instagram pictures. Creating a domino effect for a few hours of Instagram babes.
"Dude there's so many hot pictures on Instagram recently"

"Yeah I know, Brooke created an Insta domino effect"
by Your friendly neighborhood dog October 19, 2015
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A girl who is so attractive, that she is almost unattainable. Few men have and ever will successfully complete the long treacherous journey of stepping foot on that mysterious pussy and marking that territory.
Guy 1: "Dude have you seen that chick Jessica!?!?"

Guy 2: "Yeah man, she's so sexy, she's moon pussy"
by Your friendly neighborhood dog October 18, 2015
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