Top Definition
1. A weird, dumb person; someone who is very ignorant and does not like to listen to other people.

2. A funny nick name you can call other people to just make fun of them or make them laugh.
1. Shut up Bob, stop being such a sponge horse!

2. HAHA, Bob!! You spongehorse!! Heehee
by Sunnykatie March 25, 2008
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