rude slang A person or thing that is extremely annoying or inconvenient. I know I need to renew my license, but dealing with the lines at the DMV is such a pain in the ass.
Fig. a very annoying thing or person. (Crude. Potentially offensive. Use only with discretion. An elaboration of pain. Use caution with ass. Butt is less offensive. Rear is euphemistic.) That guy is a real pain in the ass. Things like that give me a pain in the butt.
n. a very annoying thing or person. (Usually objectionable. An elaboration of pain. Rear is euphemistic.) You are a pain in the ass! Things like that give me a pain in the butt.