1 definition by lolitzchoco

yuyu is someone who usually screams at his/her friends and swear at them when s/he disagrees with someone. yuyu can also mean a beast as when s/he gets mad, s/he is like a beast.
leanne: GRR I AM SO PISSED I HATE YOU ALL
karmen: oh no leanne is being a yuyu today D:
by lolitzchoco April 14, 2008
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