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51.
1. a person that will engage in either a homosexual or heterosexual relationship. BUT THERE IS A PREFERENCE: having no preference at all is called pansexual. True bisexuals will go either way, but for the fact that they enjoy certain aspects of that gender (ex. penis, vagina...). pansexuals actually don't care at all and take no care in physical aspects, they only care about emotional. don't confuse the 2.

2. what bisexual isn't:

- over-sexed individuals looking to hump anything and EVERYTHING

- teenage girls that will make out with other girls so they can look "hot"

- whores (save a few of us)

-confused. there's a difference between being gay/lesbian/bisexual and being confused. teenagers just need to chillax...
1. "Hey, is he still going out with his girlfriend?"
"Nah, he dumped her for his new boyfriend."
"Is he gay?!"
"Nah, man, he's bisexual."

2. "Did you see her making out with that chick?!?!"
"Yeah and?"
"She's bi, dude! That's so fecking hot!"
"Dude, she's straight, and her desperate attempts are obviously working..."
by Call me Skeez May 22, 2009
 
1.
The ability to reach down someone's pants and be satisfied with whatever you find.
Jane is bisexual
John is heteroexual
Jane had a bisexual affair with John and Jill
by Homicide April 06, 2004
 
2.
A person capable of having physical, romantic, and sexual attraction attractions towards both sexes. What bisexual is NOT: Sex fiends looking to hump everything in sight. Just a phase of confusion. A fad; though for some females it is considered "sexy" to be bisexual. A person who engages in orgies. (Though some do, I'm sure.)
I'm bisexual. :)
by Dark Child July 17, 2003
 
3.
To be bisexual is to be attracted to a person regardless or gender or sex. It does not mean that you cannot make up your mind, it does not mean you are sex-crazed, and it does not mean that you will by default participate in orgies every night.
Of course, there is probably someone reading this that DOES participate in orgies every night, but they would be in the minority.
by Alyson April 21, 2003
 
4.
The often overlooked B in LGBT. A person capable or romantic and sexual attraction towards a partner of either gender. A person twice as likely to be turned down for a date on Saturday night. Someone who has to prove to the heteros that he is not gay, and prove to the homos that he is not straight. A trait hetero men find extremely attractive in women and seem to find frightening in men.
Some people are bisexual.
by Bisexual yankee geek June 19, 2003
 
5.
Noun: A person who is sexually attracted to both men and women. This does not necessarily imply that the person is EQUALLY attracted to both sexes.

Adj: Used to refer to such a person.
(N): I first realised I was *bisexual* when I found myself lusting after both Mulder and Scully.

(Adj): Health Education needs to be tailored to individual needs, including those of bisexual men and women.
by UnVirtue November 25, 2004
 
6.
A person who likes men and women sexually, mentally, etc. Being Bi does not mean that a man is still "in the closet", or a girl wants attention by saying that she is Bi.
That guy is hot! Whoa, so is she!
by SuperSonicX February 01, 2005
 
7.
someone who is sexually attracted to males and females.
I'm bisexual :)
by Ali June 22, 2004