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1.
1.) (Exclamation) To be astonished at the characteristic of some object or situation.

2.) (Interrogative) To question the validity of a statement and/or an entity.

3.) (Racial slur) Beaner
1.) What the Fridge! That guatemalan thinks hes a beaner!

2.) What the fridge are you talking about?

3.) Erick
by Sr. Guero October 27, 2007
 
2.
Another use like "what the fuck!"

instead of fuck.

You simply replace it with fridge.
bob: did you know we had homowork ?
bill: WHAT THE FRIDGE ! NO !?
by anne marie alison March 20, 2010