1. Charlie Alpha III to Red River I, watch out, you got pigs on your wing!
2. Ever since I called that chick fat, I got pigs all over my wing.
3. If you didn't care what happened to me,
And I didn't care for you
We would zig zag our way through the boredom and pain
Occasionally glancing up through the rain
Wondering which of the buggers to blame
And watching for pigs on the wing.
(Pig On The Wing part 1)
Anybody who you don't want to see when you run into them. Used to describe enemy fighters in the Second Big One but now is used to describe anyone you have to talk to in a bar, restaurant, sporting event, etc. that you see and don't want to talk to.
You and a buddy walk into your favorite watering hole and see all your ex co-workers, "Hey dude, there are a lot of Pigs on the Wing here, let's leave.
Is when you go out with a mate (who's not especially confident with the ladies) as his wing man and you end up in bed with the woman he was interested in.
Cutting your wing man's grass by default, WANGIN' ON THE WING WONG.