Son of a Bitch!
Son of a bitch (var. sonovabitch): Something that is very difficult or unpleasant. Used to express surprise, disappointment, anger, etc. (based on Merriam-Webster)
Rodrigo Duterte, elected president of the Philippines last May, was supposed to meet with President Obama in Laos on the sidelines of the ASEAN meeting Monday. He had referred to Obama as a putang ina (“son of a bitch”) in a news conference, and earlier to U.S. ambassador Philip Goldberg with what was reported as a homophobic slur.