basically a 'fag frag' is your empty alcoholic beverage refilled with your very own urine, then thrown directly into crowds of gay innocent bystanders showering them with urine
When a person on Battlefield 3 uses Frag rounds in their shotguns, thinking they are cool while it takes no skill to use a shotgun with explosive rounds.
A person who is scared of homos, so much they take matters into their own hands.
And in video games terms kills them
Bobby *kisses Frank*
Matt "Proceeds too Blow off penises then watch them slowly bleed out"
Danny "Nice Blowing Matt!"
Micah "your such a FagFragger you silly goose"