Define Sand Dune Meaning

Sand Dune
The only appropriate place on a beach that you can have drunk sex and not get arrested for public indecency

I decided to go for a 'walk' in the sand dunes with my 'friend' and we got 'lost'.
By Felecia
Sand Duning
Gay sex. The dunes are similar to butt cheeks

Bobby was exhausted from sand duning all night.
By Jyoti
Sand Dunes

Hey I've fixed my snapchat so you can send me all of your sand dunes.
By Hulda