Simple past tense and past participle of hitchhike.(verb)
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Use "hitchhiked" in a sentence
"To find the adaptation signal, Petrov and his colleagues looked for regions of the genome that "hitchhiked" along with an adaptation."
"But a spokesperson for the Department for Environment, Food and Rural Affairs (Defra) said that a new strategy was in place to "tackle the threat to the UK's native biodiversity from unwanted pest species which have 'hitchhiked' into the UK on plants"."
"With a stirred heart filled with the sounds of longing, I hitchhiked myself along the most extraordinary love trip possible."