Top Definition
When a friend or loved one accuses you of something you didn't do, and won't believe otherwise.
What a fuckslam I received the other day! She fuckslammed me royally.
by Vlad the Impaler October 17, 2006
6 Words related to fuckslam
When your fucking a girl in the ass, and your about to cum, pull her legs out from beneath her so she slams into the below surface.
I had to take Mandy to the hospital today, I fuck-slammed her so hard last night she broke her nose.
by Digidy May 07, 2008

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