According to this
here, : 1 ounce of chips or pretzels - is two handfuls
1/2 cup of potato chips, crackers or popcorn - is one man's handful
1/3 cup of potato chips, crackers or popcorn - is one woman's handful
So a 1/2 cup is one mans handful and 1 1/2 cups would be 3 mens handfuls.
Ana