abbreviation for "shit fuck whore." Commonly used by the Texas A&M Corps of Cadets to describe something terrible, as an adjective, or just in casual conversation. Essentially, it can be plugged in anywhere that people aren't uptight assholes. Used particularly by the unit N-1.
"Man I bombed my Calc test. sfw!!"
"Dude, this stupid sfw car won't start."
"SFW!"
Acronym for sensor-fuzed weapon. basically an air launched bomb with a sensor on the front that can detect how high it is and detonate the bomb about 10 meters above the ground, spraying shrapnel over a large area. highly effective against infantry and light vehicles