Top Definition
The 3rd (pre-adolescent) stage of development in the life cycle of the cucuy. A winged, hummingbird-sized alien being found exclusively in the forests of central New Mexico, USA. The cucuybird feeds on insects as it gains strength before growing into the chupacabra, or adolescent-phase cucuy. When feeding, the cucuybird emits a high-pitched chirping sound much similar to sky-cars on the popular 80's children's cartoon, "The Jetsons". (see also: cucuy, cucuywaterscorpion baby, cucuywaterscorpion, chupacabra)
Hey, look! Theres a cucuybird. That thing's gonna be pretty scary in a few months.
by JB April 12, 2005

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