That phrase functions as an noun phrase, specifically an interjectional epithet. Here's why: * Noun Phrase: It acts like a noun, referring to a person (albeit in a highly offensive way). You could theoretically replace it with a noun in a sentence, although the meaning would be drastically different. For example, instead of saying "That… Continue reading I asked Google Gemini to tell me what part of speech in English grammar is “Son of a Bitch”. Answer:
Waiting For Charlemagne 