Simple past tense and past participle of swap.(verb)
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Use "swapped" in a sentence
"The calls swapped between "gringo", and "can you buy me a burger"."
"Nathan Fillion’s girlfriend gets her brain swapped with Ryan Reynolds’ character, so there’s this one scene where the two guys almost kiss."
"Its light and heat survive in only the flimsiest of things: the feathered seed heads of the reeds that engrave fine scratches onto the plate of the sky; the tiny contact calls swapped between parties of long-tailed tits as they move through the willow tops, living in the warmth of their own talk."