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1 - (Interjection) used as an exclamation of joy, celebration at one's own good fortune

2 - (verb) (of any equine animal) to bounce merrily on a trampoline to the intense delight of all concerned

1 - 'Ponybounce! I won a tenner wheyyy'

2 - 'I thought it would be cruel to make a horse go on a trampoline, but clearly they love to ponybounce- we should put a pig on a swing'
by Oxford Usage Committe April 21, 2009
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