Simple past tense and past participle of truckle.(verb)
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Use "truckled" in a sentence
"When the Big 3 CEOs truckled into the beltway in ostensibly ultramodern hybrid vehicles, they paraded more of their cars of yesterday."
"I truckled in my manly way, while he watched me as though he thought I was there to pinch the silver."
"In a letter of 1863 to his friend the botanist Joseph Hooker, he said, ‘But I have long regretted that I truckled to public opinion, and used the Pentateuchal term of creation, by which I really meant “appeared” by some wholly unknown process.’"