A mass of phlegm expelled from the esophagus onto a surface such as asphalt or concrete. It is the only non-shelled mollusk known to man.
While hacking outside Lincoln Center, Charles fathered a land clam on 65th Street
by Suburban Boy May 20, 2004
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A Caucasian female who frequents shore towns, wears short skirts/dresses that occasionally expose her vag.
Danny and I are going to Bamboo bar in hopes to sneak a peek at some land clams.
by BIMchxMJ January 27, 2022
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Otherwise known as a "loogie." A generally large, brackish, slimy substance expunged from ones lungs with great force. Commonly used as a weapon on schoolyards and construction sites.
"Did you see that flying land clam I just hocked?"
by Snatch Bloodline August 10, 2008
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The female equivalent of "tea bagging". A woman places her bare vagina on an unsuspecting individual's face.

Nonconsensual circumstances are most prominent; however, if your partner asks for a clam land, it wouldn't be inappropriate to oblige.
"Can you believe Jimmy is passed out already?"

"Yea, that dickhead deserves a clam landing for being such a little bitch."
by Sauce Queen October 8, 2015
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A garlicky and fleshy boiled snail otherwise know as escargo.
I can't believe she ordered the land clams at a bowling alley.
by Ryan 3000 August 20, 2017
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