Comprehensive resource for understanding and mastering English idioms
The idiom "bug someone" generally means to annoy or pester someone repeatedly, usually with a small or seemingly insignificant issue. It can also refer to something that causes irritation or discomfort, such as a physical bug bite. The idiom is often used in the past tense, as in "I got bugged by a mosquito."
The origin of the idiom "bug someone" is unclear, but it may have derived from the literal meaning of the word "bug," which refers to a small insect that can cause discomfort and irritation when it bites or crawls on a person's skin. The idiom has been in use since at least the 16th century, according to the Oxford English Dictionary, and its figurative meaning has evolved over time to include things that are simply annoying or bothersome.