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2.
pronunciation: sh-mah-g-ah
Function: noun

A shmaga is a s'more in which you replace the Hershey's chocolate with a Reese's Peanut Butter Cup
Dominic: Hey Lauren, do you want to go make some shmagas?!

Lauren: Do you have the Gram crackers? Marshmallows? Reese's peanut butter cups?

Dominic: Check, check and check!

Lauren: then what are we waiting for!
by PersianDeity August 25, 2009
 
1.
As versatile as the F-word, shmaga has a number of definitions, though it is mostly used as an adjective.
Adjective: He is such a shmaga.
by Brian B21 February 09, 2007