Starting out a few years ago, I finally managed to take out a friend of mine on a systemlink game with 12 of us fucking around on Gears and Halo 3.
Needless to say, he was one of the famous dick friends who kills you as often as possible while his skill level is above yours so he can say he killed you X amount of times before you got him once.
I took him out, and for some reason I had nothing to say but one word...
"GATORADE!!!!"
He screamed, and got insanely pissed off about it, so it became a callsign for him getting killed.
Every time someone killed him, there came the call on the headsets...
"GATORADE!!!!"
"GAAAAAAATOOOOOOORRRRAAAAAAAAADDDDDEEEEEE!!!!!!"
Since that time, I've made that my call online and in friendly matches. "Friendly" being what they start out as, that is...
Now, when it's about 10 minutes after going in, the call is dreaded, or laughed at depending on if it's a team match or not.
And needless to say, the dick no longer plays any kind of multiplayer with us anymore, since his skill level has never gone much higher than it was...