Simple past tense and past participle of surf. (verb)
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Use "surfed" in a sentence
"When we had our sudden stop that slid right off and Sadie "surfed" it to the floor escaping harm."
"HI Anna - Ive just 'surfed' in having recently been bitten by the cooking bug."
"European space boffins are chuffed to announce that they have successfully 'surfed' the atmosphere of Venus, during a so-called 'aerodrag' experiment in which the solar panels of a space probe functioned as aerofoils skimming the top of the second planet's atmosphere."