The effect of the violent purging of liquid shit from the back passage, which leaves a 'splattering' of crap on the back of the toilet bowl, not dissimilar from a type of exterior wall coating.

For maximum effect the 'pebble dasher' requires a significant amount of 'wind' in their system and must strain hard whilst simultaneous holding their ring piece closed (with hands if required). Once enough pressure has built up the opening of the ring piece will allow the pebble dashing to occur.

Pebble dashers should note that one school of thought maintains that given extreme straining, the material exiting the rear can potentially achieve super sonic velocities, momentarily creating a shock wave that can tear the ring piece. Their advice is therefore not to strain too hard!
I never pebble dash at home, only in mates houses.....and then leave it!
by Ryd June 25, 2006
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In skateboarding a small hard to see pebble that when run over will cause your board to grind to an instant halt regardless of how fast you're going, usually sending the skater flying over the front of the board, much to the confusion of onlookers who simply see the skater go flying for no real reason. Usually there pebble leaves a chalkish skid mark showing how far the board slid before the rider was launched which can be used to recover some ego.
If you have never hit a death pebble, don't worry. One will find you and make you look like a poseur.
by Dsky171 July 27, 2016
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the stupid walk many young blacks and wigga's do.

walking like you've been shot in the leg

or have a stone in your shoe...
just go to croydon and watch! pebble foot everywhere!
by percy percy February 6, 2009
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Smallest classification of penis.
Smaller than a tiny penis or micro penis.
Barely classified as a penis it is so small.
Small penile bump protruding from a male's pubic area.
"Did you bang Morris?"
"No, he had a pebble penis, it would have been impossible!"
by blamblamglam December 10, 2013
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A phrase to describe a weak/not so strong person as a gangster or a ruler breaker, an innocent person who committed an act which caused them to be rebellious
Wow Kate you didn’t do the chemistry homework Mr Rinner set us, you are a rebel pebble
by FHssn November 5, 2017
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the small bits of hard shit that fly out of your ass super fast after you haven't gone number two for a few days.
'dude thats a hard poop pebble'
'I just made a really hard poop pebble'
by wigglenips November 22, 2013
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The name given to a man who, after having sex, has been said to cum in little pebble form, or with small squirts one after the other like *plip, plip, plip, plip, squip, squirt.* Usually enjoyed by their partners for their unique and pleasurable "talent."
Mary: Oh my god, James was such a good pussyeater... not to mention he's a Pebble Boy!
Jessica: Ouuu, he sounds so damn good. Can we have a threeway?
by cpubot561 December 13, 2016
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