1. Interjection (kandoushi)

   thank you (for the meal); that was a delicious meal

   Usually written using kana alone

2. thank you (for displaying lovey-dovey behaviour)

   Usually written using kana aloneJocular, humorous term

Also written ご馳走さま【ごちそうさま】gochisousama、御馳走様【ごちそうさま】gochisousama