surf (sûrf)
n.
   The waves of the sea as they break upon a shore or reef.


surfed, surf·ing, surfs
v.
   to ride on or along (a wave) on a surfboard.

surf·er  (sûrfr)
n.
  
one who engages in the sport of surfing

wipe out (wp out)
v.
   to lose ones balance and fall