The offspring which results from the mating of a male zebra and female pony, especially Shetland pony --> think My Little Pony(*) w/out all the glitter and glam. Similar to ponebra
The zoo director was upset that the new intern allowed the male zebras to enter the pony section of the petting zoo, creating many baby zebronies later in the year.
by Your mother April 13, 2005