Top definition
The best at FOILing, superior to all others in the subject of mathematics
Jess is the F0ILer due to her ability to dominate in all mathematica areas.
by FOILING September 02, 2008
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug