1. something/someone causing annoyance
stop being such a nuisance
The noun 'nuisance' refers to a person or thing which causes annoyance or irritation. "This photocopier never works when I need it to, it's such a nuisance." "Daniel constantly irritates co-workers, distracts them and is generally a nuisance around the office." This word has a negative connotation and comes from a term used in law meaning an act which is offensive or harmful to the public - a public nuisance. "The effect of alcohol abuse is a public nuisance." You will hear this expression used both in social and professional contexts.