No, "fuck" is a general exclamation. I can't think of other examples, but it's closer to yelling "oh my god" during a church service or something. Parkour is not a general exclamation people use. Fuck is. Like if something happens you might yell "fuck" even if it's not sexual.
Another example is yelling "damn" at a "dam", but that's not really a good example because it's more of a pun.
If you're having sex with a partner it could be an instruction or encouragement. Like if you and a buddy are running from a bear and yell "run". Or parkouring away from a bear and yell "parkour". Or-nah.