Related Clues:

• Be profane
• Speak bluish?
• Give one's word God damn it!
• Blasphemous cry
• Bit of voodoo
• Trouble for a tomb raider
• Stubborn guy
• Wish evil on
• Use indecent or blasphemous language
• Risk an FCC fine, perhaps
• Invoke evil upon
• Use a lot of four-letter words
• Opposite of a blessing
• Promise not to mince one's words
• Oath; (annoying sort of) person