Here's every censored or cut-off curse word in the MCU. Generally, the franchise doesn't shy away too much from the occasional swear word, and some MCU heroes certainly have dirtier mouths than others—Tony Stark being the main perpetrator. If Deadpool officially joins the MCU in Deadpool 3, expect Tony's record to be blown out of the water.
Marvel's writers do skirt around the really bad words, however. The comics have been doing this for decades with grawlix in place of the actual swear words,
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