One that is at a disadvantage.
Guy 2: Hell no you dumbass. That midget's got his legs cut off and he's blind in one eye. He's a real underdog if I ever saw one.
Dude 1: Why don't you just goto hell.
Guy 2: God you're a bitch...
"Train like an underdog, win like a champion" -Rockafella Family
Person 2:It's a Plane
Person 3:It's a frog......
Person 1&2:A frog?
Underdog: Nor bird, nor plane, nor even frog......just little ole me ....UNDERDOG!!! HIP HIP AND AWAY!!