1. A hollow, buoyant bathing toy cast in vulcanized rubber or soft vinyl, historically palm-sized, here emphatically not; esp. the oversized public-installation variety, in which the original form has been scaled to architectural consequence and the rear curvature is understood to be the whole point.
2.slang. Built like a buoy, shaped like a dream. The bill is decorative. The back half is the whole conversation, and she is not showing it here.
In a sentence:
"The harbor commission installed a thiccc rubber duck in the slip between two container ships, and by Tuesday the container ships felt self-conscious. She sits low in the water, and she does it on purpose."
Etymology:
From rubber (vulcanized natural latex, process patented by Charles Goodyear, 1844) + duck (Old English duce, 'diver,' from the bird's habit of ducking underwater). The toy form is attributed to sculptor Peter Ganine's 1940s patent; the giant public-installation form is attributed to Dutch artist Florentijn Hofman, c. 2007, who apparently looked at a bath toy and thought: more.
Yes. Rubber Duck was admitted to the Thiccctionary on September 11, 2026 and filed in the Domestic Goods section. The ruling on file: Admitted. Every subject in the catalogue is judged on its curves, not its size.
What makes a rubber duck thiccc?
Built like a buoy, shaped like a dream. The bill is decorative. The back half is the whole conversation, and she is not showing it here.
Is "thiccc" spelled with three c's?
Yes. The Thiccctionary house spelling uses three c's, distinguishing the editorial register from the colloquial "thicc" (two c's) and standard "thick" (one c).