Simple past tense and past participle of spud.(verb)
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Use "spudded" in a sentence
"The exploration group Desire Petroleum - named after HMS Desire, which claimed to have discovered the islands in 1592 - issued a statement to the London stock market today confirming its Ocean Guardian drilling rig had "spudded", or broken ground, at 2. 15pm."
"As such, stating that Dr. Griffin was an "above average engineer" rendered the rest of your comments about as useful as a dry spudded wildcat."
""It appears their timetable is slipping a bit for getting a well spudded with the new rig," Schwartz said."