[Katja]

I have two favourites XD　

写真　　(shashin, photograph)　　　　　　　　　　　　　　大食い (oogui, glutton)

The first one because I use it so often. My bf says I could be really annoying about shashin.
The second one because you can make so much funny stuff with it. Like 犬食い or　太食い.