It is rude, offensive and confrontational in any situation, Isabelle. Use it only if you are a teenager denying satisfaction to a younger sibling or when having a fight with your spouse.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Mister MicawberFirst, 'lump with it' is wrong: it is 'lump it'.I see I see...
Mister MicawberI cannot give you simple vocabulary advice that will solve your social problems, but you must certainly know (if you are an adult) that confrontation solves no difficulties if you wish to maintain an amicable social and/or working relationship.