chub(redirected from a chub)
vulgar slang An erection.
1. adjective Somewhat fat; having plump features. I love going to the beach, but I'm afraid I'm going to look chubby in this swimsuit.
2. noun, vulgar slang An erection.
n. an erection. (Usually objectionable.) He always gets a chubby when he doesn’t need it and never when he does.