Something someone would say if he has
experience of any sort, particularly a soldier's battlefield
experience.
All in all, this phrase is self-explanetory to whatever meaning you desire.
"
Screaming, killing, explosions.....I've seen it all."
-a soldier
"Murder, punks, drugees..... man I've seen it all."
-a thug
"When she removed her
thong man......I'VE SEEN IT ALL!!! ^.^ ^.^ ^.^ "
-a
perv