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1.
a youtube account with a semi-famous video of a Chinese emo kid that cuts off his hand. The video has since recieved over ten thousand hits.

youtube.com/yumyumshisha
yumyumshisha: ahh! I cut off my hand!
by Leon Li September 16, 2007
 
2.
Youtube celebrity who has no life but makes fun of emo people. He has since gotten more than 2 million "hits" on his videos and channels.
"Ahh! I cut off my hand!" says Leon from yumyumshisha
by smosh lover June 25, 2009