Someone who drinks a copious amount of alcohol at or before the beach and falls face first into the sand, then rolls around at which point the sand and alcohol mix together turning them into a different creature.
After a night of heavy drinking and drugs anyone can turn into a Sandworm
by Sandworm livin March 10, 2017
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Any female that wears leggings with very busy patterns, (wide horizontal stripes and loud colors) while being unqualified to do so

Or

Scrub, sketchy, scabby, skeezy
Would you look at that mess? She really thinks that's hot? She gonna come up here, looking like a Sandworm...(smh)
by ByeGeneva! April 13, 2016
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When one finally becomes intimate with their partner and then after a romantic moment, then inserts their penis into what resembling what looks and feels like a dry mountain less dessert from Dune.
Dude: Dude Pat Mccloud got it on with his girl last night?
Other Dude: Really?
Dude: Yeah, and she was as dry as death valley.
Other Dude: AHHH my bro was SANDWORMING IT!
by ATCO August 17, 2010
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The act in which a male partner wets his genitalia, dips it in sand so as to cover it in a thin grainy film, and then brutally penetrates his partner in the rectum resulting in extreme sexual pleasure, and often bleeding.
Man! I could barely stand after Johnny gave me a Jamaican Sandworm last night!
by Preacherwoman December 8, 2008
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