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Definition funny of Daffer:
The crustation of jizz on the bitches cha cha after you fuck her
After last night her daffer was the crustiest ive seen in a long time.
Books about Daffer:
How to Evaluate Progress in Problem Solving (NCTM "How to..." series) [Paperback]  (Author) Randall Charles... (1987)
Investigating school mathematics [grade 4] [by] Robert E. Eicholz, Phares O'Daffer, Charles R. Fleenor (Addison-Wesley... by Robert E Eicholz (1973)
Geometry: An Investigative Approach (2nd Edition) 2nd (second) edition by O'Daffer, Phares G., Clemens, Stanley... (1000)
Addison-Wesley Pre-Algebra Teacher's Resource Binder. Indexed Notebook containing 6 books. By O'Daffer/Clemens... by O'Daffer/Clemens/Charles (1992)
instructor's resource and solutions manual for o'daffer mathematics for elementary fourth 9780321448040 (2008)
Student Solutions Manual for Mathematics for Elementary School Teachers by O'Daffer,Phares; Charles,Randall; Cooney... by O'Daffer (2007)
Mathematics for Elementary School Teachers by O'Daffer,Phares; Charles,Randall; Cooney,Thomas; Schielac. [2004,3rd... by O'Daffer (2004)