I am a fan of curse words that arent really curse words. My personal favorite is one from dogberts clues for the clueless. There is a cowboy saying "bullfeathers" and a madam who overhears it then faints.
A great phrase imo. Often gets a laugh and accurately explains my mood.
Since moving to china my vocab has expanded a bit. My davorite curse word here is biaoze. In itself it just sounds funny imo but my friend explained it the best way imaginable too. She started explaining and i caught on to her meaning and said "oh we have that in english too... dirty hooker."
After thinking for a bit she replied "mmm not quite. If you were in a room full of dirty dirty hookers... she is the dirtiest one... even you probably wouldnt touch her."