(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
1. An individual underqualified or incompetent in performing a task, especially with regard to engineering.

2. One who fraudlently professes knowledge of a subject despite a total lack of understanding.

3. Inexperienced with or incapable of social interaction.
1. Given even the simplest task - drilling a hole in a plate of aluminum - the slap managed to ruin both the drill bit and the plate.

2. Didn't you overhear him the other day? That slap was telling the new students that it's impossible for steel to fatigue, even though the sample had a textbook fatigue failure. Didn't that guy fail Material Science?

3. The slap's attempts to communicate with his neighbors were awkward and ineffective.
by Go! July 26, 2006
an verb used to describe a song with sick bass
Person1: Hey come check out this song!
Person2: Is it any good?
Person1: Hell yea, this song slaps!
by NinjaPleaaasssee April 13, 2011
1.Badly done make-up.
2.Uncomplimentary term for make-up in general, used by people who don't like make-up, to annoy people who do.

Also see fake-up
1.What are you thinking, slapping all that slap on your face? It's gross!

2.What are you thinking, slapping all that slap on your face? It's gross!
by Scarl0 April 30, 2009
Music that makes you want to turn up the volume ALL the way (CRACKIN music).
by Good Company September 15, 2011
Sounds Like A Plan

origin bennington, vermont
what are we doing tonight?
pos movie.
s.l.a.p.
by kjax jackson April 09, 2007
Verb.

1. Used to describe giving or taking something.
2. To slap it somewhere - Meaning to go somewhere
3. Slap something up - To create
1. "Aye dude will you slap me a piece of gum?"
2. "You guys tryna slap it to McDonalds?"
3. "Im finna slap me up a nice fat sandwich!"
by A.Marra December 11, 2013
What the five fingers said to the face.
"Charlie there's a new joke going around. Have you heard it? What did the five fingers say to the face?"

*SLAP*
by ncshygurl February 20, 2009

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