As fun as it is to drop f-bombs and curse words, doing so on an enterprise social network will probably offend some co-workers. To get around the swear filter, make your coworkers chuckle and fully express how you feel, why not get creative with it? Say, “Fudge Monkeys!,” “This is bogus!” or “Fan of a Crikey!”
Of course, you might want to avoid saying/writing anything that sounds like cursing when responding to negative situations. Use your better judgement (even if you think the situation is bull spit).