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1. Irascible or peevish; petulant; easy to annoy or anger. I find myself becoming more and more waspish as the years go by. I just don't have the patience for other people's nonsense anymore. Her mother was always very waspish toward her children, which I know affected Margaret very deeply for years to come.
2. informal Having the appearance or manner of white protestants of British or Northern European descent, especially those who are wealthy and socially influential. The term alludes to the acronym "WASP" (White Anglo-Saxon Protestant), and it is sometimes left capitalized to reflect this. All of his girlfriends have been a bit waspish, don't you think? Some people consider him WASPish because of the way he dresses and acts, but it's more of an affectation than anything else.
3. informal By extension, snobbish, haughty, or condescending, especially due to one's high socioeconomic status. I didn't feel very welcome playing golf there. Everyone was a bit WASPish, like they could sense I didn't come from the right kind of family. A: "The restaurant's silverware wasn't polished properly, and I had to indicate for the waiter at least twice during the meal." B: "Oh, get over yourself, Janet. You can be so waspish sometimes."
mod. in the manner of a WASP. She looks sort of “waspish,” but she’s not.