Ferdeff

Usually a name used as a substitute for "fersure".

"cooler then the hannah montana cake at your party?"
"Yes. ferdeff."

by Ashamish January 11, 2008

Ferdef

Abbreviated slang term for "definetely"

Similar to the usage "fosho"

Are you gonna hit up that party?
Ferdef!

by jtmo September 25, 2008

Ferdef

For definitely. Another option for, fer sure, and fo sho.

I am ferdef going to that show next week.

by w007! August 5, 2008