Top definition
Slang phrase meaning "is that some;" usually paired with the name of an elusive video gamed called "Battletoads." When anyone posts an image of any video game, the response is "Iz dat sum Battletoads?" (see sample below).
"Iz dat sum Battletoads?"
"No, it's Halo 4."

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"Iz dat sum original content on my Ebaums World?"
by blahblahginger November 27, 2007
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