i say **** a lot.
it starts with c and rhymes with bunt. often it's combined with f-bombs or 'stupid' or other qualifiers.
someone cuts me off, i yell "****!"
someone turns without signalling, i yell "****!"
someone passes me with a little too much throttle or a little too little space, i yell "****!"
often i look over my shoulder and there's a nice lady riding her comfort bike behind me... oops.