swing one's dick around

Etymology

From swing +‎ one's +‎ dick (“penis”) +‎ around, by analogy to swinging dick.

Noun

swing one's dick around (third-person singular simple present swings one's dick around, present participle swinging one's dick around, simple past and past participle swung one's dick around)

1. (slang, vulgar) To exhibit or act with (especially aggressive or exaggerated) bravado or machismo.