f'darn
a half-assed swear you use when you’re too scared to say 'fuck' all the way and you're too lazy to say 'darn.'
'F'darn!' I said as my teacher walked in and I felt my heart drop.
'F'darn!' I whispered as I realized I was talking to the entire class again.
'F'darn!' I blurted out as I saw my teacher's face turn from happy to angry in 0.2 seconds.