To slap one until they're knocked some sense into or to slap one until they're knocked the hell out.
John had to slap me silly after I jumped off that 30-foot diving board.

Mike slapped me silly when we fought after school.
by NooberCrooser November 3, 2014
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Meaning I'll slap the f*ck out of you until you're dizzy.
Boy: I swear to you I didn't cheat on you!
Girl: Don't lie to me bitch I ought to slap you silly.
by Shaya CUH June 27, 2020
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Striking in the face of one's opponent with an open, wet palm (see topkapi) leaving the recipient dazed and silly at any time of the day or night. Recipient of the slap may not be lucid or responsive for more than 30 seconds.

By Da flying squirrel
I will slap you silly until you look for the ring, hobbit.
by Da flying squirrel September 3, 2015
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A sexual act usually involves the dick slapping the women’s face and may even end with in cream pie
Ye man I will take you to the room and slap you silly till you give me a blowie
by queenlozza October 25, 2019
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