2 definitions by chicadee6jen

noun- a friend disguised as an enemy; an enemy pretending to be a friend
Caitlin keeps asking for my lunch money and says that friends share. She is using me. She is a frienemy.
by chicadee6jen June 11, 2008
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J = Just
S = So
Y = You
N = Know (noe)
JSYN = just so you know
JSYN, my name is not emily, it is alli
by chicadee6jen June 11, 2008
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