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1.
Whilst having sex doggy-style, pulling out a set of hair clippers and shaving your partners head.
After she cheated on me, My ex called for some ex-sex. I britney speared her and sent her packing to her new boy-toy
by Mykie G April 09, 2010
 
2.
noun- A disease. Common among young teen and preteen females. Symptoms include: Attempting to sing with a voice that is at best average; proclaiming you're the ultimate virgin-then pretending to be the world's biggest slut; shaving off all your hair and putting on weight; losing your mind(even though you really never had one)-then claiming you found it. Always making a comeback, when it's questionable you ever came.
Not to be confused with,Miley Syphilis
"Doctor Fraud, are you re-admitting that same delusional bald girl again?"

"Yes, unfortunately, it's one of the worst 'Britney Speared' cases I've ever seen. The worst part of it is, this poor girl can really sing!"
by badugah February 21, 2009