Where did term blowing raspberries come from?

The term "blowing raspberries" originates from the British slang phrase "to raspberry," which means to make a derisive sound by sticking out the tongue and blowing air through closed lips, producing a sound similar to flatulence. This playful gesture is often used to mock or express disdain. The term "raspberry" itself has been used in English since the early 20th century, and its exact origins are somewhat unclear, but it may be linked to the Word "rasp," meaning to create a harsh sound.