to wreck or destroy the insides of the female genitalia through repetitive pounding with one's average to large sized penis. those with a small penis cannot smash guts, ie randall.
yo greg, did you see the ass on megan? that shit is on fire.
whatever man, i will smash guts on that bitch all nite son.
word.
by iwishihadaflamethrower June 15, 2010
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Dirty rough pounding of the female genitals by an extremely large penis during coitus
Damn yo that hotty is gonna let me smash her guts.
by startronix July 18, 2015
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To have vicious, somewhat unhealthy intercourse.
"it got to the point I had to shag her. Absolutely smashed the guts out of it, I did. You should've seen it. Fanny like sandblasted beef tripe"
by Smear test August 23, 2017
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Smashing guts.

The act of rubbing guts together during intercourse. Also can be another name for sex.
Fuck! We were smashing guts all over the place last weekend!

I hope tonight he plans on smashing guts!!!
by The limpest dick June 24, 2018
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