I think it shows you respect the other players enough to be honest about your emotions. Am I wrong?
Unless by mixed you mean some of you are adults and some of you are 5 year olds it’s fine.
I think it is inappropriate to use the f-word in a mixed foursome.
You should say “fuck” like an actual adult.
Depends on the company. I have some friends who are deeply religious, and I temper my language around them to be polite. I have other friends who use fuck as every imaginable part of speech and sometimes as punctuation.
Fuck yes.
Well this just sounds like someone’s wife/girlfriend gave them crap about saying “fuck”, doesn’t it?
This is not a question there’s a right or wrong answer to. It depends on the group. Taboo language is there to express strong emotions, but in certain settings and in certain cultural groups, it’s not appropriate to express certain strong emotions. You need to be able to read your environment to figure out whether your actions were appropriate. My guess, however, is that if you have to ask, it wasn’t.
Fiddle-faddle? Flipper-me-jibbet?
My dad, an inveterate swearer when on the course (esp. as he got older and his game deteriorated) would sometimes try to moderate his ways by using euphemisms-such as “Mother Hubbard” or “sheet.”
If the foursome includes a multi-millionare father-in-law that has already excluded one kid from the will when he admitted to getting to second base before marriage, then yes, it’s probably inappropriate.
If the foursome includes some punk rockers and you’re playing at the KISS-themed Monster Golf in Las Vegas, probably not.
If you miss a three-foot putt, anything short of flinging your putter into the lake is a remarkable show of control over your emotions.
Anyone who doesn’t understand that shouldn’t be golfing.
Fuck.
This question is unanswerable. It depends on who you were playing with. Different people have different attitudes regarding swearing. If it bothered the people you were playing with, it was inappropriate. If it didn’t, it wasn’t.
It is not any more complicated - or any simpler - than that.
There is a right answer, and you gave it:
I donno. A three-foot putt should pretty much be automatic. Now if he/she were to miss a two-foot putt, then there’s no question that it was appropriate.
How is it being said?
If its a joking “Fuck, I should have made that!” kind of thing then sure.
“FUCK!!!” red faced & forehead veins throbbing angrily - not so much
I will reword your paragraph so as it applies to me:
I have some friends who are deeply religious, and use fuck as every imaginable part of speech and sometimes as punctuation.
I personally only swear if it’s appropriate - i.e. if something heavy fell on my foot; if it’s funny; to seriously emphasise something. Most often I will faux-swear or use antiquated language. “Buggery bollocks!”
That was my thought - most men don’t temper their speech for women so much any longer (and most of us women don’t expect it, since we swear as much as the guys), but I would temper my speech if the mixed foursome was religious people and non-religious people.
I try not to call the ball a dirty little bitch when I miss a short putt. 
Fuckin’-A, Bubba.
Were these women your SO and M-I-L? Probably better to wait and let them curse first. Alternatively you could just learn how to putt or maybe act like an adult when you miss one.
What one person describes as being “honest about your emotions”, someone else might see as “throwing a tantrum”.
I agree with points already made:
- It depends on the people in your foursome.
- Getting annoyed at missing a putt is normal. Genuinely losing your temper over a round of mini-golf is not.
And I’ll add one more:
- It’s not just about you and your group. If there was a family with kids close enough to overhear you, watch your language for their sake even if you don’t know them.