hodad
Hodad (noun) means (informal, surfing) A person who hangs around the beach with a surfboard but either does not surf or surfs badly, annoying experienced surfers.
Etymology
Originally Californian surfer slang from the 1960s. Perhaps from the greeting Ho! Dad, though no evidence for this derivation is known. The suggestion that it derives from Western Hemisphere Spanish jodido (“fucked, difficult, annoying”) similarly lacks evidence; also the vowel change from -did to -dad is unexplained.