The term "bring on a headache" refers to causing a person to experience a painful and throbbing sensation in their head. Some other synonyms that could be used instead of "bring on a headache" might include "trigger a migraine," "induce a cephalalgia," "spark a throbbing pain," or "instigate a pounding head." Each of these phrases describes the act of causing someone to experience intense discomfort in their head, often due to a variety of factors such as stress, dehydration, or exposure to bright lights or loud noises. Regardless of the exact wording used, the meaning remains the same: something is causing the person to experience a headache or migraine.