A bitterly sarcastic variation of the word congratulations. Usually used by someone in a very fowl mood. Not appropriate for formal settings.
You got that hoss's number? Congratufuckinlations.
Congratulations. To celebrate something, with special emphasis. Usually derrogatory, as in when someone does something really stupid, like announces that they have to go to the bathroom. Fuck can emphasize any word. Has special emphasis when inserted in the word, e.g. congratufuckinlations.
Vicky's status message: I went pee
Sajai's response: Congratufuckinlations