f-word
noun
Definitions
The word fuck or fucker, fag or faggot.
Example: Oh, f-word, I've lost the keys.
Any word beginning with f that is not normally taboo but is considered (often humorously) to be so in the given context.
Example: She has no luck with diets. Don't mention the f-word (by which I mean "fat").
verb
Definitions
To use vulgarities, especially the word fuck.