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2.
Someone of the male species, that wants and or appears to look like a female.A male that is very feminine, also known as a "shemale"
That gay guy looks like mister sister
by Nicki November 10, 2003
 
1.
A drag queen.
Origin: "Will and Grace"
Don't mess with that mister sister, or you'll end up looking like a Cher barbie doll gone bad.
by asdfghjkl September 25, 2006
 
3.
a transgendered person
Chet: That girl looks awfully masculine
John: Haha Chet, that isn't a girl, that's a mister sister
Chet: A what?
John: A mister sister. A shemale. A tranny. You gettin' it?
by SHMOSEPH May 07, 2013