f'darn
a word you yell when you're caught saying 'fuck' and you're too scared to finish your sentence.
'F'darn!' I said as the teacher’s face turned red and I felt my face turn red too.
'F'darn!' I blurted out before I even realized I was talking to the whole class.
'F'darn!' I cried as I realized I had said it in front of my crush.