Top Definition
the act of surprising a sleeping person with an erect penis in the mouth.
Pete: Hey Nate last night I gave Jill the surprise cock!

Nate: So you slabberdashed her or something?

Pete: No douche! While she was sleeping I jumped on the bed straddled her head and the next thing she knew she was waking up to a steaming pile of cock in her mouth.
by Douche-Bag Magee September 13, 2009
4 Words related to Surprise Cock
In a porn, the male actors who show up out of nowhere midway through the video.
I was watching a porno where these two chicks make out and have sex for 20 minutes when the surprise cock showed up and then it was suddenly all about the guys.
by Eric Ha March 30, 2015

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