Simple past tense and past participle of trowel. (verb)
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Use "troweled" in a sentence
"The entire house is rendered in hard-troweled, white stucco with sealed concrete floors throughout the ground level."
"He pulled off a piece of the football-shaped baguette, troweled up some of the joint compound, and put it into his mouth."
"And just in case those ironies aren't strong enough, a couple of music cues are troweled on: Helen Morgan singing "What Wouldn't I Do for That Man?" over shots of an ardent Braun, and Noël Coward singing "Don't Let's Be Beastly to the Germans" as the camera pulls up, Google Earth-like before its time, from an aerial photograph of Berlin that widens into a panorama of all of Europe."