1. The action/process of fucking someone good.
1a. Hittin' it
1b. Tappin that ass.
1. Damn, Keri looks good as shit!..I just wanna smash her!
by Tai June 30, 2003
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to have sex, sexual relations any sexual manner, to fuck
We been together for 2 days now when you going to let me SMASH?

Man! I went in there at 6 I didn't leave til' 10 I was SMASHING all night.
by Rickey G December 15, 2003
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can be used any many different forms, i.e. winning, fucking, eating, etc. etc.
i smashed that babe i met at the bar last night!

i'm about to smash this dinner my mama just cooked!

the heat smashed the cavs last week! now i bet dan gilbert is about to smash his fist into the wall!

let's smash outta here, way too many dudes here. let's go find some freaks to take back and smash at my place!
by prufessa February 10, 2011
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to have rough sex. very hard and mean.
"damn, i would bend that girl over and smash the shit out of her, so hard."
by TROYEDGE May 6, 2009
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(verb) To smash, or to play super smash bros.
(noun) Smash, short for super smash bros.
(verb) Hey man wan go smash?
(noun) Let's go play some smash.
by Gamefan99 November 29, 2011
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to drop a load, to take a number 2, to shit, to poop
My bowels were rumbling because I had to take a smash real bad.
by finder_error September 18, 2002
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verb

To thrust—as hard as physically possible—your partner while having sex (i.e., pussy, anal and mouth).
Example I:
Rugged Rod smashed her so hard that her head went through the wall and she couldn’t walk for a few days.
Example II:
Her face got smashed so hard that she couldn't breathe.
by creep guy ie February 2, 2011
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