When someone is ignoring you or using one word answers because they are pissed or don't like you

Someone who really enjoys inspecting all forms of food and household objects before making use of them.

Anyone who thinks they are better than someone else based upon superficial factors.

when you are 'snobbed' you are being ignored or avoided.

A person who at the least, gives off the impression of having a superiority complex towards everyone outside his or her social circle with body language and words. Snobs come in many shapes in forms and in just about every style, e.g., Preppy snobs, Artistic snobs, Musical snobs, and even Redneck snobs. Whatever group of snobs someone belongs to, they act like they know everything in that area of knowledge and are less than friendly toward outsiders.

A person who considers themselves higher in society than others.

Someone who claims to be of higher intelligence than others, understands the finer thing in life, and generally deems themself a higher being than most others; they often refer to the 'lesser beings' as peasant or philistines. In simple terms, snobs are wankers.