cock
n. countable C2 Proficiency US //ˈkɑk// UK //kˈɒk// cock
n. a very rude and offensive word for a penis. It is also used as an insult for a man you think is stupid or annoying.
n. the penis. Highly informal and vulgar in register; also functions as a pejorative term for a male person perceived as contemptible.
He is acting like a total cock.
The graffiti on the wall featured a crude drawing of a cock and several swear words.