Simple past tense and past participle of spat.(verb)
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Use "spatted" in a sentence
"From the Rattler, close astern, rifles cracked, and bullets spatted against the rock."
"Among the grand things I learned from Imagine… Harry Nilsson: The Missing Beatle and Richard Hammond's Journey to the Centre of the Planet, the two best factual programmes of the week, were: there was blood from polyps such a pretty word left on the microphone after Harry Nilsson and John Lennon duetted – spatted – to be louder/croakier on their druggy "Many Rivers to Cross", and both voices dimmed hence."
"These were sup - posed to be the names of the different malchicks they'd spatted with before they were fourteen."