1 definition by Luckila Margarita
Lycra tight fitting surf shirt that protects surfer's stomachs, backs and upper body from rash that comes from rubbing up against surfboards.
"Dude i'm so glad i wore my rashguard! Did you see that crazy ass Kevin's bleeding raw stomach?! He should have worn a rashguard."
by Luckila Margarita June 8, 2005