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70.
(music) A bass guitar technique of hitting a string hard with the side of the thumb knuckle, producing a loud but brief snapping sound. Slapping is usually combined with popping, the act of pulling a string outward with the finger tip and letting it snap back. Invented by Larry Graham (Sly and the Family Stone, Graham Central Station).

Slap & pop bass sounds are very characteristic of disco and funk music, though around 1990 it got very popular again when bands like Red Hot Chilli Peppers, Primus, Infectious Grooves, and Faith No More hit the hard rock radio stations and Mtv.
Jazz players on upright bass (aka double bass) have a technique called "slapping", but it's a completely different technique that involves literally slapping the strings.
by Bill M. August 27, 2004
23 42
 
43.
To hit someone with an flat open-hand.
When the Chicago Bears came to my second home "Da Dome" in New Orleans. I slapped them silly.
by Saints October 15, 2003
34 41
 
44.
Underlings or subordinates.
All y'all slaps need to shut the hell up!
by drewsac February 28, 2011
19 27
 
45.
Said when someone does something stupid or wrong, sometimes accompanied by slapping on the top of hands. Can be negated by saying "no slaps" before someone else says it.
Bob-"Man, this is a good pizza cake..I mean piece of cake"
Jim-"Slaps! ahahaha"
Bob-"..."
Alternate example:
Bob-"Man, this is a good pizza cake..I mean piece of cake, no slaps."
by that1dudeeeeeeee March 23, 2011
9 18
 
46.
sounds
like
a
plan
Joan: "Hey lets go to mickey D's"
Katie: "SLAP I'll see you there at 6"
by dahlka March 16, 2005
14 23
 
47.
A stupid and/or obnoxious person who talks loud in public. Usually, a slap has a bad haircut.
John's Bar was a lot of fun, until all those slaps started coming.
by Brew Boy 4 Life March 11, 2004
14 23
 
48.
Make up, especially when applied very thickly (because it's slapped on). See also "Slapper"
It took her half an hour to put her slap on.
by IanM September 14, 2003
14 23
 
49.
A way of keeping your seat safe when you get up without anyone taking it. Sort of like fives, but for as long as you want. When you get up yell out slaps and slap your seat,
Slaps!
by zuzu444 August 23, 2011
8 18