Top Definition
After rough anal sex with either a male or female, as a man reaches orgasm he pulls out his penis and ejaculates/cums on his partners back, often followed by wiping and smearing his jism covered helment accross the back.
"Oh god, i backspooged all over you"

"As I pulled it out his ass, there was a lot of back spooge on his back"
by Zu Amir February 25, 2008

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