U+1D9BC "𝦼" Signwriting Movement-Floorplane Hump Hitting Ceiling Large Triple Unicode Character

U+1D9BC "𝦼" Signwriting Movement-Floorplane Hump Hitting Ceiling Large Triple is a symbol within the SignWriting script, a writing system designed to visually represent sign language gestures. This specific character denotes a precise movement in which a hand rises in an arc shape, bumps against an imaginary ceiling, and then performs this action three times in succession, with the "large" qualifier indicating an expanded or emphasized motion path. The "floorplane" reference establishes the horizontal spatial plane from which the movement originates, while the "hump" and "hitting ceiling" components together describe the upward curved trajectory and the percussive contact at the peak of the arc. This character allows sign language writers to encode nuanced, multi-step kinetic sequences for accurate transcription in fields like linguistics, education, and documentation of deaf storytelling.