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2.
A girl that thinks that shes pretty but is real ugly and wears her best friends clothes. If she buys her own clothes she wears them and then returns them.
JLO is the best example of a pigion. Listen to the song pigion.
by Mo December 17, 2004
 
1.
a female scrub, a girl who thinks shes all that but doesnt even have the looks to make up for all that she lacks
That chicka thinks shes all that, but she aint nothing but a pigion!
by liza January 04, 2005