The name of the group participating in a lucky pierre. When one man is fucking someone of any gender while another man fucks him in the ass.
Deer stacking sure is fun, but man is my ass is sore.
by CumGuzzler420outof69 April 24, 2018
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Placing a holiday deer decoration on top of another so that it appears that they are having sex.
"Hey do you guys want to go deer stacking tonight?"
by Westballer December 30, 2011
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