Top Definition
basically a combination of shut the fuck up. but in a quick slurring of speech.

best use- out of a cute boys mouth.
girl-haha, you suck at life.
cute boy- shfuckup..
girl- haha aww..that was cute. I was jaykay.
cute boy- =)
by Angela and Logan! December 12, 2006
5 Words related to shfuckup

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