Simple past tense and past participle of shell.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "shelled" in a sentence
"Kate and Anna slept at the Chateau Marmont hotel in Los Angeles between recording sessions with ace players as the label shelled out an astronomical-at-the-time $120,000 to launch them."
"There were reports of Israeli forces being shelled from the sea, there was a boat out there that was a military boat, not an Israeli boat, so they shot it."
"Seed corn was shelled from the cob with the thumb; we never threshed it with sticks."