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1. A humble, yet funloving individual whom of which rides skateboards in empty swimming pools and surfs waves in any/all oceans throughout the world.

2. A person that is secure enough of their self to openly make fun of their self, character, etc.

3. (adj.) A common word used to describe a typical surfer or someone that surfs.
"Look at that guy over there laughing his arse off... he's just sumdumsurfer."
by Name witheld April 10, 2004
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
via giphy
by ecogoth December 30, 2020
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2
A very hairy man who rides skateboards and surfboards, enjoys barley pops, the color orange, and likes using the word "feckless". Can be seen in his natural environment of the ocean or skatepark sporting his man-sweater.
Dude, Sumdumsurfer is da mang!
by Eric September 15, 2004
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