Top definition
A Donkeyiser is a specified type of internet troll requiring many years of training and practice. There is only one known such troll, an Irish teenager who simply goes by the name "Donkeyiser". In the event of meeting this person you should quote "Tha game" to him.

Donkeyiser specializes in making the victim look like a Donkey (or an ass) by devaluing forum posts and decrediting the author. The victim is then said to be "Donkeyised".
by Donkeyiser, the only. December 06, 2011
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