Examples
“I call it slapping the stupid out of a pathetic ignorant troll.”
“A marginal few (mostly religious fundamentalists as those at Calvin) think that child bottom-slapping is good.”
“Lit critics are as good as New York fashion folk in slapping new names to old concepts.”
September « 2009 « poetry dispatch & other notes from the underground
“I read the link you provided and indeed happy slapping is mentioned as something they are trying to stop over there.”
“In the meantime, I have just received PopBitch's weekly email in which they say that happy slapping is a thing of the past and the new craze among schoolkids is Seagulling.”
“Guys like Hume are more interested in slapping liberals – not necessarily blacks.”
Think Progress » Hume to Juan Williams: “Someone Needs To Hose You Downâ€
“Happy slapping" is a bizarre phenomenon in the UK where teenagers suddenly slap strangers on the tube (and other kids at school) in the face and capture the action on video using cameraphones.”
“Duke then ran the shot clock down and allowed Gray to mockingly lead his teammates in slapping the floor, a trademark of Coach K's defense.”
“Tom, "cried Captain Bunting, slapping his companion on the shoulder --" well and bravely spoken; but you're a goose for all that, and so, saving his presence, is Commodore Ned Sinton.”
“We got a mention in the media back slapping is done, it’s just a pity it wasn’t a more intelligent comment.”
Lists
These user-created lists contain the word ‘slapping’.
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The Aubrey/Maturin List I'm Gonna Mak...
I'm wading through Patrick O'Brian's Aubrey/Maturin novels one by one, and someday, I'll wade through them again and list all the words I learned while reading them.
Edit: I started ma...studdingsail, carronade, mumchance, grumlin-futtocks, crosscat-harpings, holystone, sennit, orlop, orchitis, negus, kevel, altumal and 1112 more...
Tweets
Looking for tweets for slapping.

chained_bear "'What is that frightful noise, that great resounding crash?'
"'We call it slapping. Some of our northern ships do it when they stem these short hollow seas. It makes the Mediterranean builders laugh.'"
--Patrick O'Brian, The Ionian Mission, 249 Feb 14, 2008