The word "raspberrying" can be replaced with a variety of synonyms that convey a similar meaning. One alternative word is "blowing raspberries," which refers to a childish act of sticking out one's tongue and producing a rude, buzzing sound with the lips. "Bronking," "bucking," or "snorting" are other words that describe the act of blowing air through one's nose in a derisive or contemptuous manner. Additionally, "mocking," "ridiculing," or "taunting" can be used to capture the sense of making fun of someone or something. In any case, these synonyms showcase the idea of expressing disapproval or mockery in a playful or disrespectful way.