1 definition by Holly Carpenter

Top Definition
When you and your partner both wake up in the middle of the night, and proceed to have sex. But you are soo tired it's very slow and mindless. Like a zombie.
Sometimes you may wake up and wonder if you actually had sex or not.
My girlfriend and I woke each other up and just started having zombie sex. It was so cool.
My fuck buddy slept over last night and then at some point in the middle of the night we both woke up so we just rolled over for some zombie sex.
by Holly Carpenter July 28, 2011

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