You watch Castaway and all you see is a head high wave in the background and wouldn't mind ending up on that island
you ask someone for wax, you have wax on the floor of your house, you go nuts when you see perfect waves.
Your boards are worth more than your car. Dune, check my $hit for grammar then take a big hit and pass it to the left.
You know you're a surfer when anytime someone tries to make plans with you your automatic response is "Ya, I'm down with that. As long as there is no surf."
HAHA, yes! That's all I kept whispering to my wife when we saw that at the movies. She was like "shut the F up".
Your car upholstery (station wagon, my old car) grows mold 'cause you leave damp, salty boards, towels, and neoprene shut up inside in warm weather.
When you finally live/work walking distance to the surf and realize there are no more goals to achieve in your life.