When something is really wet, grotty and soggy.

For example: When it rains at a British festival and everything gets super grotty and soggy - bare grotty soggs
Just fell over in a bare grotty soggs puddle and now I'm bare grotty soggs.
by Arp August 14, 2014
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Onomatopoeia; Lanzarote, island in the Spanish Canaries located in the Atlantic ocean.
Bob: "I'm off one me hols next week"

Ted: "where you going?"

Bob: "Land-so-grotty" Lanzarote
by catfuckerman July 18, 2011
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When you perform anal intercourse whilst taking a shit, then you pull the poo covered dick out of the ass and put it in the persons mouth. Therefore performing a Grotty Na Na
“I was going ham with my girl last night when I surpised her with the Grotty Na Na”
by Fun4lyfe October 17, 2017
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