| YAMAH | Right on, awsome,(something a bro would say). |
| YAR | Yes |
| YIKES | An understated response to a closeout set at Waimea Bay |
| YO | A way a surfer gains the attention of another person. |
| YO MAMA | The best diss ever. |
| YUCKBABE | A chic who wears a bikini at the beach and really shouldn't due to being fat. |
| YUPPIES | Tourists who burn even though they use too much sunscreen. |