Skip to main content
Dictionary
Store
Blog
World
Help
Advertise
Chat
System Status
Information Collection Notice
Trademark Concerns
reCAPTCHA Privacy
Terms of Service
reCAPTCHA Terms
Privacy Policy
Accessibility
Report a Bug
Data Request
Contact Us
Security
DMCA
© 1999–2026 Urban Dictionary ®
Mugs
Tees
Hoodies
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
In Geography, LSD is an abbreviation of Long Shore Drift. In other words, it is the movement of sediments and material along a shoreline by means of wave action. In this case the waves meet the shoreline at an angle, where the swash is greater than the backwash, thus pushing sediments along the beach in a zig-zag motion.
Text fits
Save
Cancel