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2.
A combination of the phrases "for real" and "seriously". The two are combined to form "for-serious", adapted later to "ferserious" meaning "really serious." Most commonly used in question form.
"When I first heard that Anna and Billy were going steady, I didn't think it was ferserious, so I asked outloud 'Are you ferserious?!?'"
by Niki Williams August 16, 2003
 
1.
For serious;Serious; Seriously.
Ususaly as a question.
"Oh my gosh! Are you fer' serious?"
or
"Yeah guys. I'm fer' serious!"
by Steven From Lansing Michigan! February 28, 2005
 
3.
a word to ask if someone is telling the truth.
are you ferserious about going to that movie? it looks so lame.
by Danielle August 23, 2004
 
4.
To answer back to something that you can't believe
Boy-did you see that Britney Spears shaved her head?
Girl-Fer serious?
by K'lee February 29, 2008
 
5.
an exclamation meaning "are you serious"
Holy crap, are you fer serious!?!
by Caitlyn Comintary October 25, 2007